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Finding the Fourth Proportional to 249.62, 372.49 and 222.35

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Solution

The fourth proportional to 249.62, 372.49 and 222.35 is: 331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.62 : 372.49 = 222.35 : x
  2. Step 2: Convert to fraction form
    249.62/372.49 = 222.35/x
  3. Step 3: Cross multiply
    249.62x = 372.49 × 222.35
  4. Step 4: Simplify right side
    249.62x = 82,823.15
  5. Step 5: Solve for x
    x = 82,823.15/249.62
  6. Step 6: Final answer
    x = 331.80

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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.