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Finding the Fourth Proportional to 169.24, 252.47 and 161.50

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Solution

The fourth proportional to 169.24, 252.47 and 161.50 is: 240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.24 : 252.47 = 161.50 : x
  2. Step 2: Convert to fraction form
    169.24/252.47 = 161.50/x
  3. Step 3: Cross multiply
    169.24x = 252.47 × 161.50
  4. Step 4: Simplify right side
    169.24x = 40,772.64
  5. Step 5: Solve for x
    x = 40,772.64/169.24
  6. Step 6: Final answer
    x = 240.92

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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.