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Finding the Fourth Proportional to 251.71, 376.95 and 249.89

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Solution

The fourth proportional to 251.71, 376.95 and 249.89 is: 374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.71 : 376.95 = 249.89 : x
  2. Step 2: Convert to fraction form
    251.71/376.95 = 249.89/x
  3. Step 3: Cross multiply
    251.71x = 376.95 × 249.89
  4. Step 4: Simplify right side
    251.71x = 94,195.09
  5. Step 5: Solve for x
    x = 94,195.09/251.71
  6. Step 6: Final answer
    x = 374.22

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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.