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Finding the Fourth Proportional to 169.72, 252.97 and 168.08

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Solution

The fourth proportional to 169.72, 252.97 and 168.08 is: 250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.72 : 252.97 = 168.08 : x
  2. Step 2: Convert to fraction form
    169.72/252.97 = 168.08/x
  3. Step 3: Cross multiply
    169.72x = 252.97 × 168.08
  4. Step 4: Simplify right side
    169.72x = 42,519.20
  5. Step 5: Solve for x
    x = 42,519.20/169.72
  6. Step 6: Final answer
    x = 250.53

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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.