Home / 202,712-285,139

Finding the Third Proportional to 202,712 and 285,139

Calculator

Solution

The third proportional to 202,712 and 285,139 is: 401,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,712 : 285,139 = 285,139 : x
  2. Step 2: Convert to fraction form
    202,712/285,139 = 285,139/x
  3. Step 3: Cross multiply
    202,712x = 285,139 × 285,139
  4. Step 4: Simplify right side
    202,712x = 81,304,249,321
  5. Step 5: Solve for x
    x = 81,304,249,321/202,712
  6. Step 6: Final answer
    x = 401,082.57

Related Problems

Find third proportional to 101,356 and 142,569.50
Half scale
Find third proportional to 405,424 and 570,278
Double scale
Find third proportional to 202,714 and 285,142
Similar ratio
Find third proportional to 304,068 and 427,708.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.