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Finding the Fourth Proportional to 249.63, 371.88 and 237.78

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Solution

The fourth proportional to 249.63, 371.88 and 237.78 is: 354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.63 : 371.88 = 237.78 : x
  2. Step 2: Convert to fraction form
    249.63/371.88 = 237.78/x
  3. Step 3: Cross multiply
    249.63x = 371.88 × 237.78
  4. Step 4: Simplify right side
    249.63x = 88,425.63
  5. Step 5: Solve for x
    x = 88,425.63/249.63
  6. Step 6: Final answer
    x = 354.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.