A ratio was the relationship between a factor and a number.
According to a Vissian engineer, Cogenitors made up 3% of the Vissian population, which he deemed to be a perfect ratio. (ENT: "Cogenitor")
In 2269, Spock noted that the Phylosians used nearly 70% of their brains, a ratio he deemed to be very high. (TAS: "The Infinite Vulcan")
The ratio of matter to antimatter was 1 to 1. This answer was part of a trick question on a Starfleet Academy hyperspace physics test in 2364. (TNG: "Coming of Age")
Notable ratios
- AFR ratio
- Data compression ratio
- Differential ratio
- Hit to miss ratio
- Intermix ratio
- Osmotic pressure ratio
- Oxygen ratio / oxygen isotope ratio
- Power ratio
- Return force ratio