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Finding the Fourth Proportional to 251.47, 347.12 and 173.95

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Solution

The fourth proportional to 251.47, 347.12 and 173.95 is: 240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.47 : 347.12 = 173.95 : x
  2. Step 2: Convert to fraction form
    251.47/347.12 = 173.95/x
  3. Step 3: Cross multiply
    251.47x = 347.12 × 173.95
  4. Step 4: Simplify right side
    251.47x = 60,380.44
  5. Step 5: Solve for x
    x = 60,380.44/251.47
  6. Step 6: Final answer
    x = 240.11

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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.