Home / 381,729.10-572,593.65-132,436.30

Finding the Fourth Proportional to 381,729.10, 572,593.65 and 132,436.30

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Solution

The fourth proportional to 381,729.10, 572,593.65 and 132,436.30 is: 198,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,729.10 : 572,593.65 = 132,436.30 : x
  2. Step 2: Convert to fraction form
    381,729.10/572,593.65 = 132,436.30/x
  3. Step 3: Cross multiply
    381,729.10x = 572,593.65 × 132,436.30
  4. Step 4: Simplify right side
    381,729.10x = 75,832,184,409.50
  5. Step 5: Solve for x
    x = 75,832,184,409.50/381,729.10
  6. Step 6: Final answer
    x = 198,654.45

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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.