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Finding the Fourth Proportional to 249.39, 372.45 and 223.88

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Solution

The fourth proportional to 249.39, 372.45 and 223.88 is: 334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.39 : 372.45 = 223.88 : x
  2. Step 2: Convert to fraction form
    249.39/372.45 = 223.88/x
  3. Step 3: Cross multiply
    249.39x = 372.45 × 223.88
  4. Step 4: Simplify right side
    249.39x = 83,382.24
  5. Step 5: Solve for x
    x = 83,382.24/249.39
  6. Step 6: Final answer
    x = 334.34

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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.