Home / 431,251.30-646,972.10-131,755.23

Finding the Fourth Proportional to 431,251.30, 646,972.10 and 131,755.23

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Solution

The fourth proportional to 431,251.30, 646,972.10 and 131,755.23 is: 197,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,251.30 : 646,972.10 = 131,755.23 : x
  2. Step 2: Convert to fraction form
    431,251.30/646,972.10 = 131,755.23/x
  3. Step 3: Cross multiply
    431,251.30x = 646,972.10 × 131,755.23
  4. Step 4: Simplify right side
    431,251.30x = 85,241,957,839.08
  5. Step 5: Solve for x
    x = 85,241,957,839.08/431,251.30
  6. Step 6: Final answer
    x = 197,661.92

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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.