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Finding the Fourth Proportional to 169.11, 252.26 and 152.71

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Solution

The fourth proportional to 169.11, 252.26 and 152.71 is: 227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.11 : 252.26 = 152.71 : x
  2. Step 2: Convert to fraction form
    169.11/252.26 = 152.71/x
  3. Step 3: Cross multiply
    169.11x = 252.26 × 152.71
  4. Step 4: Simplify right side
    169.11x = 38,523.37
  5. Step 5: Solve for x
    x = 38,523.37/169.11
  6. Step 6: Final answer
    x = 227.80

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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.