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Finding the Fourth Proportional to 249.33, 372.12 and 222

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Solution

The fourth proportional to 249.33, 372.12 and 222 is: 331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.33 : 372.12 = 222 : x
  2. Step 2: Convert to fraction form
    249.33/372.12 = 222/x
  3. Step 3: Cross multiply
    249.33x = 372.12 × 222
  4. Step 4: Simplify right side
    249.33x = 82,610.64
  5. Step 5: Solve for x
    x = 82,610.64/249.33
  6. Step 6: Final answer
    x = 331.33

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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.