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Finding the Fourth Proportional to 168.89, 252.11 and 150.66

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Solution

The fourth proportional to 168.89, 252.11 and 150.66 is: 224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.89 : 252.11 = 150.66 : x
  2. Step 2: Convert to fraction form
    168.89/252.11 = 150.66/x
  3. Step 3: Cross multiply
    168.89x = 252.11 × 150.66
  4. Step 4: Simplify right side
    168.89x = 37,983.27
  5. Step 5: Solve for x
    x = 37,983.27/168.89
  6. Step 6: Final answer
    x = 224.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.