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Finding the Fourth Proportional to 251.80, 347.29 and 168.88

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Solution

The fourth proportional to 251.80, 347.29 and 168.88 is: 232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.80 : 347.29 = 168.88 : x
  2. Step 2: Convert to fraction form
    251.80/347.29 = 168.88/x
  3. Step 3: Cross multiply
    251.80x = 347.29 × 168.88
  4. Step 4: Simplify right side
    251.80x = 58,650.34
  5. Step 5: Solve for x
    x = 58,650.34/251.80
  6. Step 6: Final answer
    x = 232.92

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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.