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Finding the Fourth Proportional to 252.89, 349.08 and 178.30

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Solution

The fourth proportional to 252.89, 349.08 and 178.30 is: 246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.89 : 349.08 = 178.30 : x
  2. Step 2: Convert to fraction form
    252.89/349.08 = 178.30/x
  3. Step 3: Cross multiply
    252.89x = 349.08 × 178.30
  4. Step 4: Simplify right side
    252.89x = 62,240.73
  5. Step 5: Solve for x
    x = 62,240.73/252.89
  6. Step 6: Final answer
    x = 246.12

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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.