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Finding the Fourth Proportional to 252.54, 349.90 and 248.60

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Solution

The fourth proportional to 252.54, 349.90 and 248.60 is: 344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.54 : 349.90 = 248.60 : x
  2. Step 2: Convert to fraction form
    252.54/349.90 = 248.60/x
  3. Step 3: Cross multiply
    252.54x = 349.90 × 248.60
  4. Step 4: Simplify right side
    252.54x = 86,985.39
  5. Step 5: Solve for x
    x = 86,985.39/252.54
  6. Step 6: Final answer
    x = 344.44

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.