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Finding the Fourth Proportional to 318,103.38, 477,055.17 and 93,407.76

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Solution

The fourth proportional to 318,103.38, 477,055.17 and 93,407.76 is: 140,082.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,103.38 : 477,055.17 = 93,407.76 : x
  2. Step 2: Convert to fraction form
    318,103.38/477,055.17 = 93,407.76/x
  3. Step 3: Cross multiply
    318,103.38x = 477,055.17 × 93,407.76
  4. Step 4: Simplify right side
    318,103.38x = 44,560,654,826.12
  5. Step 5: Solve for x
    x = 44,560,654,826.12/318,103.38
  6. Step 6: Final answer
    x = 140,082.31

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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.