Home / 381,688.20-572,532.30-132,370.20

Finding the Fourth Proportional to 381,688.20, 572,532.30 and 132,370.20

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Solution

The fourth proportional to 381,688.20, 572,532.30 and 132,370.20 is: 198,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,688.20 : 572,532.30 = 132,370.20 : x
  2. Step 2: Convert to fraction form
    381,688.20/572,532.30 = 132,370.20/x
  3. Step 3: Cross multiply
    381,688.20x = 572,532.30 × 132,370.20
  4. Step 4: Simplify right side
    381,688.20x = 75,786,215,057.46
  5. Step 5: Solve for x
    x = 75,786,215,057.46/381,688.20
  6. Step 6: Final answer
    x = 198,555.30

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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.