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Finding the Fourth Proportional to 169.62, 254.31 and 97.44

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Solution

The fourth proportional to 169.62, 254.31 and 97.44 is: 146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.62 : 254.31 = 97.44 : x
  2. Step 2: Convert to fraction form
    169.62/254.31 = 97.44/x
  3. Step 3: Cross multiply
    169.62x = 254.31 × 97.44
  4. Step 4: Simplify right side
    169.62x = 24,779.97
  5. Step 5: Solve for x
    x = 24,779.97/169.62
  6. Step 6: Final answer
    x = 146.09

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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.