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Finding the Fourth Proportional to 366.89, 550.18 and 132.55

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Solution

The fourth proportional to 366.89, 550.18 and 132.55 is: 198.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.89 : 550.18 = 132.55 : x
  2. Step 2: Convert to fraction form
    366.89/550.18 = 132.55/x
  3. Step 3: Cross multiply
    366.89x = 550.18 × 132.55
  4. Step 4: Simplify right side
    366.89x = 72,929.13
  5. Step 5: Solve for x
    x = 72,929.13/366.89
  6. Step 6: Final answer
    x = 198.78

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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.