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Finding the Fourth Proportional to 276.20, 414.47 and 160.88

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Solution

The fourth proportional to 276.20, 414.47 and 160.88 is: 241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.20 : 414.47 = 160.88 : x
  2. Step 2: Convert to fraction form
    276.20/414.47 = 160.88/x
  3. Step 3: Cross multiply
    276.20x = 414.47 × 160.88
  4. Step 4: Simplify right side
    276.20x = 66,679.93
  5. Step 5: Solve for x
    x = 66,679.93/276.20
  6. Step 6: Final answer
    x = 241.42

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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.