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Finding the Fourth Proportional to 276.32, 411.22 and 267.32

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Solution

The fourth proportional to 276.32, 411.22 and 267.32 is: 397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.32 : 411.22 = 267.32 : x
  2. Step 2: Convert to fraction form
    276.32/411.22 = 267.32/x
  3. Step 3: Cross multiply
    276.32x = 411.22 × 267.32
  4. Step 4: Simplify right side
    276.32x = 109,927.33
  5. Step 5: Solve for x
    x = 109,927.33/276.32
  6. Step 6: Final answer
    x = 397.83

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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.