Home / 156,776-338,128

Finding the Third Proportional to 156,776 and 338,128

Calculator

Solution

The third proportional to 156,776 and 338,128 is: 729,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776 : 338,128 = 338,128 : x
  2. Step 2: Convert to fraction form
    156,776/338,128 = 338,128/x
  3. Step 3: Cross multiply
    156,776x = 338,128 × 338,128
  4. Step 4: Simplify right side
    156,776x = 114,330,544,384
  5. Step 5: Solve for x
    x = 114,330,544,384/156,776
  6. Step 6: Final answer
    x = 729,260.50

Related Problems

Find third proportional to 78,388 and 169,064
Half scale
Find third proportional to 313,552 and 676,256
Double scale
Find third proportional to 156,778 and 338,132
Similar ratio
Find third proportional to 235,164 and 507,192
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.