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Finding the Fourth Proportional to 249.49, 372.12 and 235.21

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Solution

The fourth proportional to 249.49, 372.12 and 235.21 is: 350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.49 : 372.12 = 235.21 : x
  2. Step 2: Convert to fraction form
    249.49/372.12 = 235.21/x
  3. Step 3: Cross multiply
    249.49x = 372.12 × 235.21
  4. Step 4: Simplify right side
    249.49x = 87,526.35
  5. Step 5: Solve for x
    x = 87,526.35/249.49
  6. Step 6: Final answer
    x = 350.82

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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.