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Finding the Fourth Proportional to 318,407.52, 477,446.40 and 93,738.72

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Solution

The fourth proportional to 318,407.52, 477,446.40 and 93,738.72 is: 140,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,407.52 : 477,446.40 = 93,738.72 : x
  2. Step 2: Convert to fraction form
    318,407.52/477,446.40 = 93,738.72/x
  3. Step 3: Cross multiply
    318,407.52x = 477,446.40 × 93,738.72
  4. Step 4: Simplify right side
    318,407.52x = 44,755,214,404.61
  5. Step 5: Solve for x
    x = 44,755,214,404.61/318,407.52
  6. Step 6: Final answer
    x = 140,559.54

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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.