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Finding the Fourth Proportional to 168.05, 250.84 and 144.97

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Solution

The fourth proportional to 168.05, 250.84 and 144.97 is: 216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.05 : 250.84 = 144.97 : x
  2. Step 2: Convert to fraction form
    168.05/250.84 = 144.97/x
  3. Step 3: Cross multiply
    168.05x = 250.84 × 144.97
  4. Step 4: Simplify right side
    168.05x = 36,363.02
  5. Step 5: Solve for x
    x = 36,363.02/168.05
  6. Step 6: Final answer
    x = 216.38

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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.