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Finding the Fourth Proportional to 276.06, 382.80 and 267.96

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Solution

The fourth proportional to 276.06, 382.80 and 267.96 is: 371.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.06 : 382.80 = 267.96 : x
  2. Step 2: Convert to fraction form
    276.06/382.80 = 267.96/x
  3. Step 3: Cross multiply
    276.06x = 382.80 × 267.96
  4. Step 4: Simplify right side
    276.06x = 102,575.09
  5. Step 5: Solve for x
    x = 102,575.09/276.06
  6. Step 6: Final answer
    x = 371.57

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.