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Finding the Fourth Proportional to 160.28, 240.22 and 119.72

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Solution

The fourth proportional to 160.28, 240.22 and 119.72 is: 179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.28 : 240.22 = 119.72 : x
  2. Step 2: Convert to fraction form
    160.28/240.22 = 119.72/x
  3. Step 3: Cross multiply
    160.28x = 240.22 × 119.72
  4. Step 4: Simplify right side
    160.28x = 28,759.14
  5. Step 5: Solve for x
    x = 28,759.14/160.28
  6. Step 6: Final answer
    x = 179.43

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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.