U+223A "∺" Geometric Proportion Unicode Character

U+223A "∺" Geometric Proportion is a mathematical symbol used to denote a proportional relationship between four quantities, typically expressed in the form of a:b = c:d, where the scale factor is consistent across the two pairs. This differs from the more common geometric proportion symbol "∷" (U+2237), representing the same concept of proportionality, by its rotated horizontal orientation, which is often employed in older mathematical notation or specific typographic contexts to reduce vertical space. The character belongs to the Unicode block for Mathematical Operators, facilitating its use in digital text to precisely communicate equality of ratios without ambiguity.