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Finding the Fourth Proportional to 318,295.89, 477,654.17 and 149,864.38

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Solution

The fourth proportional to 318,295.89, 477,654.17 and 149,864.38 is: 224,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,295.89 : 477,654.17 = 149,864.38 : x
  2. Step 2: Convert to fraction form
    318,295.89/477,654.17 = 149,864.38/x
  3. Step 3: Cross multiply
    318,295.89x = 477,654.17 × 149,864.38
  4. Step 4: Simplify right side
    318,295.89x = 71,583,344,098.01
  5. Step 5: Solve for x
    x = 71,583,344,098.01/318,295.89
  6. Step 6: Final answer
    x = 224,895.60

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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.