Home / 156,916-239,478

Finding the Third Proportional to 156,916 and 239,478

Calculator

Solution

The third proportional to 156,916 and 239,478 is: 365,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,916 : 239,478 = 239,478 : x
  2. Step 2: Convert to fraction form
    156,916/239,478 = 239,478/x
  3. Step 3: Cross multiply
    156,916x = 239,478 × 239,478
  4. Step 4: Simplify right side
    156,916x = 57,349,712,484
  5. Step 5: Solve for x
    x = 57,349,712,484/156,916
  6. Step 6: Final answer
    x = 365,480.34

Related Problems

Find third proportional to 78,458 and 119,739
Half scale
Find third proportional to 313,832 and 478,956
Double scale
Find third proportional to 156,918 and 239,481
Similar ratio
Find third proportional to 235,374 and 359,217
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.