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Finding the Fourth Proportional to 381,248.92, 571,900.02 and 156,620.68

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Solution

The fourth proportional to 381,248.92, 571,900.02 and 156,620.68 is: 234,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,248.92 : 571,900.02 = 156,620.68 : x
  2. Step 2: Convert to fraction form
    381,248.92/571,900.02 = 156,620.68/x
  3. Step 3: Cross multiply
    381,248.92x = 571,900.02 × 156,620.68
  4. Step 4: Simplify right side
    381,248.92x = 89,571,370,024.41
  5. Step 5: Solve for x
    x = 89,571,370,024.41/381,248.92
  6. Step 6: Final answer
    x = 234,941.96

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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.