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Finding the Fourth Proportional to 381,424.32, 572,006.88 and 132,048

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Solution

The fourth proportional to 381,424.32, 572,006.88 and 132,048 is: 198,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,424.32 : 572,006.88 = 132,048 : x
  2. Step 2: Convert to fraction form
    381,424.32/572,006.88 = 132,048/x
  3. Step 3: Cross multiply
    381,424.32x = 572,006.88 × 132,048
  4. Step 4: Simplify right side
    381,424.32x = 75,532,364,490.24
  5. Step 5: Solve for x
    x = 75,532,364,490.24/381,424.32
  6. Step 6: Final answer
    x = 198,027.13

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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.