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Finding the Fourth Proportional to 169.25, 254.01 and 88.12

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Solution

The fourth proportional to 169.25, 254.01 and 88.12 is: 132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.25 : 254.01 = 88.12 : x
  2. Step 2: Convert to fraction form
    169.25/254.01 = 88.12/x
  3. Step 3: Cross multiply
    169.25x = 254.01 × 88.12
  4. Step 4: Simplify right side
    169.25x = 22,382.09
  5. Step 5: Solve for x
    x = 22,382.09/169.25
  6. Step 6: Final answer
    x = 132.24

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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.