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Finding the Fourth Proportional to 160.41, 221.22 and 116.88

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Solution

The fourth proportional to 160.41, 221.22 and 116.88 is: 161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.41 : 221.22 = 116.88 : x
  2. Step 2: Convert to fraction form
    160.41/221.22 = 116.88/x
  3. Step 3: Cross multiply
    160.41x = 221.22 × 116.88
  4. Step 4: Simplify right side
    160.41x = 25,856.19
  5. Step 5: Solve for x
    x = 25,856.19/160.41
  6. Step 6: Final answer
    x = 161.19

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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.