Another round of winter weather moves into the South Associated Press; The 38 most amazing photos of this week's weather
proportional - one of the quantities in a mathematical proportion. quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable. proportion - the quotient obtained when the magnitude of a part is divided by the magnitude of the whole.
proportion. 1  ad valorem - A type of customs duties, from Latin, meaning in proportion to the value.. 2  analogy - Comes from Greek analogia, a proportion, such as 2/10 = 10/X, a way of calculating unknown quantities.