proportionality

Plural: proportionalities

Noun

• a ratio of two quantities that is constant
• harmonious arrangement or relation of parts or elements within a whole (as in a design); - John Ruskin
• the property of being proportional
• the principle that government action ought to be proportional to the ends achieved (e.g. the military should not be deployed to stop petty vandalism)
• the degree to which something is in proportion

Synonyms

balance, proportion