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Finding the Fourth Proportional to 249.90, 372.50 and 243.96

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Solution

The fourth proportional to 249.90, 372.50 and 243.96 is: 363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.90 : 372.50 = 243.96 : x
  2. Step 2: Convert to fraction form
    249.90/372.50 = 243.96/x
  3. Step 3: Cross multiply
    249.90x = 372.50 × 243.96
  4. Step 4: Simplify right side
    249.90x = 90,875.10
  5. Step 5: Solve for x
    x = 90,875.10/249.90
  6. Step 6: Final answer
    x = 363.65

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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.