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Finding the Fourth Proportional to 318,308.38, 477,388.52 and 93,608.71

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Solution

The fourth proportional to 318,308.38, 477,388.52 and 93,608.71 is: 140,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,308.38 : 477,388.52 = 93,608.71 : x
  2. Step 2: Convert to fraction form
    318,308.38/477,388.52 = 93,608.71/x
  3. Step 3: Cross multiply
    318,308.38x = 477,388.52 × 93,608.71
  4. Step 4: Simplify right side
    318,308.38x = 44,687,723,057.97
  5. Step 5: Solve for x
    x = 44,687,723,057.97/318,308.38
  6. Step 6: Final answer
    x = 140,391.29

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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.