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Finding the Fourth Proportional to 381,576.34, 572,364.52 and 132,258.34

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Solution

The fourth proportional to 381,576.34, 572,364.52 and 132,258.34 is: 198,387.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,576.34 : 572,364.52 = 132,258.34 : x
  2. Step 2: Convert to fraction form
    381,576.34/572,364.52 = 132,258.34/x
  3. Step 3: Cross multiply
    381,576.34x = 572,364.52 × 132,258.34
  4. Step 4: Simplify right side
    381,576.34x = 75,699,981,290.10
  5. Step 5: Solve for x
    x = 75,699,981,290.10/381,576.34
  6. Step 6: Final answer
    x = 198,387.51

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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.