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Finding the Fourth Proportional to 252.47, 348.42 and 141.95

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Solution

The fourth proportional to 252.47, 348.42 and 141.95 is: 195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.47 : 348.42 = 141.95 : x
  2. Step 2: Convert to fraction form
    252.47/348.42 = 141.95/x
  3. Step 3: Cross multiply
    252.47x = 348.42 × 141.95
  4. Step 4: Simplify right side
    252.47x = 49,458.22
  5. Step 5: Solve for x
    x = 49,458.22/252.47
  6. Step 6: Final answer
    x = 195.90

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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.