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Finding the Fourth Proportional to 249.73, 372.11 and 222.45

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Solution

The fourth proportional to 249.73, 372.11 and 222.45 is: 331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.73 : 372.11 = 222.45 : x
  2. Step 2: Convert to fraction form
    249.73/372.11 = 222.45/x
  3. Step 3: Cross multiply
    249.73x = 372.11 × 222.45
  4. Step 4: Simplify right side
    249.73x = 82,776.81
  5. Step 5: Solve for x
    x = 82,776.81/249.73
  6. Step 6: Final answer
    x = 331.46

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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.