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Finding the Fourth Proportional to 249.80, 374.72 and 95.85

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Solution

The fourth proportional to 249.80, 374.72 and 95.85 is: 143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.80 : 374.72 = 95.85 : x
  2. Step 2: Convert to fraction form
    249.80/374.72 = 95.85/x
  3. Step 3: Cross multiply
    249.80x = 374.72 × 95.85
  4. Step 4: Simplify right side
    249.80x = 35,916.91
  5. Step 5: Solve for x
    x = 35,916.91/249.80
  6. Step 6: Final answer
    x = 143.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.