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Finding the Fourth Proportional to 249.03, 371.30 and 242.73

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Solution

The fourth proportional to 249.03, 371.30 and 242.73 is: 361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.03 : 371.30 = 242.73 : x
  2. Step 2: Convert to fraction form
    249.03/371.30 = 242.73/x
  3. Step 3: Cross multiply
    249.03x = 371.30 × 242.73
  4. Step 4: Simplify right side
    249.03x = 90,124.44
  5. Step 5: Solve for x
    x = 90,124.44/249.03
  6. Step 6: Final answer
    x = 361.90

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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.