Home / 157,431-339,735

Finding the Third Proportional to 157,431 and 339,735

Calculator

Solution

The third proportional to 157,431 and 339,735 is: 733,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,431 : 339,735 = 339,735 : x
  2. Step 2: Convert to fraction form
    157,431/339,735 = 339,735/x
  3. Step 3: Cross multiply
    157,431x = 339,735 × 339,735
  4. Step 4: Simplify right side
    157,431x = 115,419,870,225
  5. Step 5: Solve for x
    x = 115,419,870,225/157,431
  6. Step 6: Final answer
    x = 733,145.76

Related Problems

Find third proportional to 78,715.50 and 169,867.50
Half scale
Find third proportional to 314,862 and 679,470
Double scale
Find third proportional to 157,433 and 339,739
Similar ratio
Find third proportional to 236,146.50 and 509,602.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.