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Finding the Fourth Proportional to 331,397.49, 497,158.20 and 181,555.20

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Solution

The fourth proportional to 331,397.49, 497,158.20 and 181,555.20 is: 272,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,397.49 : 497,158.20 = 181,555.20 : x
  2. Step 2: Convert to fraction form
    331,397.49/497,158.20 = 181,555.20/x
  3. Step 3: Cross multiply
    331,397.49x = 497,158.20 × 181,555.20
  4. Step 4: Simplify right side
    331,397.49x = 90,261,656,432.64
  5. Step 5: Solve for x
    x = 90,261,656,432.64/331,397.49
  6. Step 6: Final answer
    x = 272,366.75

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1.5x scale

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.