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Finding the Fourth Proportional to 293.28, 439.56 and 249.66

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Solution

The fourth proportional to 293.28, 439.56 and 249.66 is: 374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.28 : 439.56 = 249.66 : x
  2. Step 2: Convert to fraction form
    293.28/439.56 = 249.66/x
  3. Step 3: Cross multiply
    293.28x = 439.56 × 249.66
  4. Step 4: Simplify right side
    293.28x = 109,740.55
  5. Step 5: Solve for x
    x = 109,740.55/293.28
  6. Step 6: Final answer
    x = 374.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.