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Finding the Fourth Proportional to 276.49, 414.78 and 232.75

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Solution

The fourth proportional to 276.49, 414.78 and 232.75 is: 349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.49 : 414.78 = 232.75 : x
  2. Step 2: Convert to fraction form
    276.49/414.78 = 232.75/x
  3. Step 3: Cross multiply
    276.49x = 414.78 × 232.75
  4. Step 4: Simplify right side
    276.49x = 96,540.05
  5. Step 5: Solve for x
    x = 96,540.05/276.49
  6. Step 6: Final answer
    x = 349.16

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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.