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Finding the Fourth Proportional to 381,535.98, 572,407.68 and 132,237.42

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Solution

The fourth proportional to 381,535.98, 572,407.68 and 132,237.42 is: 198,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,535.98 : 572,407.68 = 132,237.42 : x
  2. Step 2: Convert to fraction form
    381,535.98/572,407.68 = 132,237.42/x
  3. Step 3: Cross multiply
    381,535.98x = 572,407.68 × 132,237.42
  4. Step 4: Simplify right side
    381,535.98x = 75,693,714,791.39
  5. Step 5: Solve for x
    x = 75,693,714,791.39/381,535.98
  6. Step 6: Final answer
    x = 198,392.08

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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.