Calculator is a Proportion and Interpolation is an Android app developed by sunrasoft that provides an effective solution for math problems that require proportion and interpolation calculations. The app is free to download and use, making it a great tool for students, teachers, and anyone who needs to solve these kinds of math problems.

The app consists of two calculators: the ratio calculator and the linear interpolation calculator. The ratio calculator allows you to find an unknown value for the known three values, while the linear interpolation calculator allows you to calculate the value of the function of the intermediate variable, having the function values for the variable less and more than necessary. With these two calculators, Calculator is a Proportion and Interpolation provides a comprehensive tool for solving proportion and interpolation problems.