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Finding the Fourth Proportional to 149.38, 206.17 and 97.08

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Solution

The fourth proportional to 149.38, 206.17 and 97.08 is: 133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.38 : 206.17 = 97.08 : x
  2. Step 2: Convert to fraction form
    149.38/206.17 = 97.08/x
  3. Step 3: Cross multiply
    149.38x = 206.17 × 97.08
  4. Step 4: Simplify right side
    149.38x = 20,013.97
  5. Step 5: Solve for x
    x = 20,013.97/149.38
  6. Step 6: Final answer
    x = 133.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.