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Finding the Fourth Proportional to 363.58, 545.49 and 147.10

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Solution

The fourth proportional to 363.58, 545.49 and 147.10 is: 220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.58 : 545.49 = 147.10 : x
  2. Step 2: Convert to fraction form
    363.58/545.49 = 147.10/x
  3. Step 3: Cross multiply
    363.58x = 545.49 × 147.10
  4. Step 4: Simplify right side
    363.58x = 80,241.58
  5. Step 5: Solve for x
    x = 80,241.58/363.58
  6. Step 6: Final answer
    x = 220.70

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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.