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Finding the Fourth Proportional to 381,573.06, 572,359.05 and 132,255.06

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Solution

The fourth proportional to 381,573.06, 572,359.05 and 132,255.06 is: 198,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,573.06 : 572,359.05 = 132,255.06 : x
  2. Step 2: Convert to fraction form
    381,573.06/572,359.05 = 132,255.06/x
  3. Step 3: Cross multiply
    381,573.06x = 572,359.05 × 132,255.06
  4. Step 4: Simplify right side
    381,573.06x = 75,697,380,499.29
  5. Step 5: Solve for x
    x = 75,697,380,499.29/381,573.06
  6. Step 6: Final answer
    x = 198,382.40

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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.