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Finding the Fourth Proportional to 276.82, 414.92 and 94.18

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Solution

The fourth proportional to 276.82, 414.92 and 94.18 is: 141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.82 : 414.92 = 94.18 : x
  2. Step 2: Convert to fraction form
    276.82/414.92 = 94.18/x
  3. Step 3: Cross multiply
    276.82x = 414.92 × 94.18
  4. Step 4: Simplify right side
    276.82x = 39,077.17
  5. Step 5: Solve for x
    x = 39,077.17/276.82
  6. Step 6: Final answer
    x = 141.16

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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.