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Finding the Fourth Proportional to 381,249.92, 571,901.52 and 156,621.68

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Solution

The fourth proportional to 381,249.92, 571,901.52 and 156,621.68 is: 234,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,249.92 : 571,901.52 = 156,621.68 : x
  2. Step 2: Convert to fraction form
    381,249.92/571,901.52 = 156,621.68/x
  3. Step 3: Cross multiply
    381,249.92x = 571,901.52 × 156,621.68
  4. Step 4: Simplify right side
    381,249.92x = 89,572,176,856.95
  5. Step 5: Solve for x
    x = 89,572,176,856.95/381,249.92
  6. Step 6: Final answer
    x = 234,943.46

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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.