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Finding the Fourth Proportional to 276.71, 381.44 and 183.46

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Solution

The fourth proportional to 276.71, 381.44 and 183.46 is: 252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.71 : 381.44 = 183.46 : x
  2. Step 2: Convert to fraction form
    276.71/381.44 = 183.46/x
  3. Step 3: Cross multiply
    276.71x = 381.44 × 183.46
  4. Step 4: Simplify right side
    276.71x = 69,978.98
  5. Step 5: Solve for x
    x = 69,978.98/276.71
  6. Step 6: Final answer
    x = 252.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.