Definition

1. Noun:
   • The quality or state of being in proper proportion or balance: "proportionality" refers to the harmonious relationship between parts of a whole, ensuring they correspond appropriately in size, amount, or degree.
   • A constant ratio between two quantities: In mathematics, "proportionality" denotes a specific, unchanging relationship where one quantity is a constant multiple of another.

Examples of Usage

• Noun:
  • The architect emphasized the proportionality of the building's windows to its facade.
  • In physics, Newton's second law describes the proportionality between force, mass, and acceleration.
  • The court assessed the proportionality of the sentence to the crime committed.

Advanced Usage

• "Principle of proportionality": A legal and ethical doctrine stating that an action should not be more severe than necessary to achieve its aim.
  • The military's response was criticized for violating the principle of proportionality.
• "Direct proportionality": A relationship where two quantities increase or decrease together at the same rate.
  • The graph shows a line through the origin, indicating direct proportionality between distance and time at constant speed.
• "Inverse proportionality": A relationship where one quantity increases as the other decreases.
  • There is an inverse proportionality between the pressure and volume of a gas at constant temperature.

Variants and Related Words

• Proportional (adj): Corresponding in size, amount, or degree; having a constant ratio.
  • The punishment should be proportional to the offense.
• Proportionally (adv): In a way that corresponds in proportion.
  • Resources were distributed proportionally based on need.
• Proportionate (adj): Another term for proportional, meaning in correct proportion.
  • They received a proportionate share of the profits.

Synonyms

• Balance: A state of equilibrium or equal distribution.
• Symmetry: The quality of being made up of exactly similar parts facing each other or around an axis.
• Ratio: The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
• Correspondence: A close similarity, connection, or equivalence.

Related Phrases

• Test of proportionality: An assessment to determine if a measure is appropriate and not excessive.
  • The new regulation failed the test of proportionality.
• Proportional representation: An electoral system where seats are allocated in proportion to the number of votes cast.
  • The country adopted a system of proportional representation.

Noun

1. harmonious arrangement or relation of parts or elements within a whole (as in a design)
   • in all perfectly beautiful objects there is found the opposition of one part to another and a reciprocal balance- John Ruskin
2. a ratio of two quantities that is constant