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Finding the Fourth Proportional to 252.26, 348.02 and 163.72

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Solution

The fourth proportional to 252.26, 348.02 and 163.72 is: 225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.26 : 348.02 = 163.72 : x
  2. Step 2: Convert to fraction form
    252.26/348.02 = 163.72/x
  3. Step 3: Cross multiply
    252.26x = 348.02 × 163.72
  4. Step 4: Simplify right side
    252.26x = 56,978.53
  5. Step 5: Solve for x
    x = 56,978.53/252.26
  6. Step 6: Final answer
    x = 225.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.