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Finding the Fourth Proportional to 252.49, 348.45 and 141.98

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Solution

The fourth proportional to 252.49, 348.45 and 141.98 is: 195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.49 : 348.45 = 141.98 : x
  2. Step 2: Convert to fraction form
    252.49/348.45 = 141.98/x
  3. Step 3: Cross multiply
    252.49x = 348.45 × 141.98
  4. Step 4: Simplify right side
    252.49x = 49,470.91
  5. Step 5: Solve for x
    x = 49,470.91/252.49
  6. Step 6: Final answer
    x = 195.93

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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.