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Finding the Fourth Proportional to 169.52, 254.28 and 121.46

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Solution

The fourth proportional to 169.52, 254.28 and 121.46 is: 182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.52 : 254.28 = 121.46 : x
  2. Step 2: Convert to fraction form
    169.52/254.28 = 121.46/x
  3. Step 3: Cross multiply
    169.52x = 254.28 × 121.46
  4. Step 4: Simplify right side
    169.52x = 30,884.85
  5. Step 5: Solve for x
    x = 30,884.85/169.52
  6. Step 6: Final answer
    x = 182.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.