Home / 410,400.27-615,695.18-129,917.52

Finding the Fourth Proportional to 410,400.27, 615,695.18 and 129,917.52

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Solution

The fourth proportional to 410,400.27, 615,695.18 and 129,917.52 is: 194,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,400.27 : 615,695.18 = 129,917.52 : x
  2. Step 2: Convert to fraction form
    410,400.27/615,695.18 = 129,917.52/x
  3. Step 3: Cross multiply
    410,400.27x = 615,695.18 × 129,917.52
  4. Step 4: Simplify right side
    410,400.27x = 79,989,590,211.97
  5. Step 5: Solve for x
    x = 79,989,590,211.97/410,400.27
  6. Step 6: Final answer
    x = 194,906.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.