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Finding the Fourth Proportional to 249.71, 373.76 and 133.88

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Solution

The fourth proportional to 249.71, 373.76 and 133.88 is: 200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.71 : 373.76 = 133.88 : x
  2. Step 2: Convert to fraction form
    249.71/373.76 = 133.88/x
  3. Step 3: Cross multiply
    249.71x = 373.76 × 133.88
  4. Step 4: Simplify right side
    249.71x = 50,038.76
  5. Step 5: Solve for x
    x = 50,038.76/249.71
  6. Step 6: Final answer
    x = 200.39

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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.