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Finding the Fourth Proportional to 363.32, 545.01 and 119.85

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Solution

The fourth proportional to 363.32, 545.01 and 119.85 is: 179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.32 : 545.01 = 119.85 : x
  2. Step 2: Convert to fraction form
    363.32/545.01 = 119.85/x
  3. Step 3: Cross multiply
    363.32x = 545.01 × 119.85
  4. Step 4: Simplify right side
    363.32x = 65,318.17
  5. Step 5: Solve for x
    x = 65,318.17/363.32
  6. Step 6: Final answer
    x = 179.78

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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.