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Finding the Fourth Proportional to 363.73, 545.68 and 171.13

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Solution

The fourth proportional to 363.73, 545.68 and 171.13 is: 256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.73 : 545.68 = 171.13 : x
  2. Step 2: Convert to fraction form
    363.73/545.68 = 171.13/x
  3. Step 3: Cross multiply
    363.73x = 545.68 × 171.13
  4. Step 4: Simplify right side
    363.73x = 93,382.22
  5. Step 5: Solve for x
    x = 93,382.22/363.73
  6. Step 6: Final answer
    x = 256.73

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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.