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Finding the Fourth Proportional to 252.90, 349.65 and 248.97

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Solution

The fourth proportional to 252.90, 349.65 and 248.97 is: 344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.90 : 349.65 = 248.97 : x
  2. Step 2: Convert to fraction form
    252.90/349.65 = 248.97/x
  3. Step 3: Cross multiply
    252.90x = 349.65 × 248.97
  4. Step 4: Simplify right side
    252.90x = 87,052.36
  5. Step 5: Solve for x
    x = 87,052.36/252.90
  6. Step 6: Final answer
    x = 344.22

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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.