Home / 515,404.38-772,917.02-178,358.52

Finding the Fourth Proportional to 515,404.38, 772,917.02 and 178,358.52

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Solution

The fourth proportional to 515,404.38, 772,917.02 and 178,358.52 is: 267,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,404.38 : 772,917.02 = 178,358.52 : x
  2. Step 2: Convert to fraction form
    515,404.38/772,917.02 = 178,358.52/x
  3. Step 3: Cross multiply
    515,404.38x = 772,917.02 × 178,358.52
  4. Step 4: Simplify right side
    515,404.38x = 137,856,335,770.01
  5. Step 5: Solve for x
    x = 137,856,335,770.01/515,404.38
  6. Step 6: Final answer
    x = 267,472.19

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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.