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Finding the Fourth Proportional to 170.89, 234.04 and 160.91

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Solution

The fourth proportional to 170.89, 234.04 and 160.91 is: 220.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.89 : 234.04 = 160.91 : x
  2. Step 2: Convert to fraction form
    170.89/234.04 = 160.91/x
  3. Step 3: Cross multiply
    170.89x = 234.04 × 160.91
  4. Step 4: Simplify right side
    170.89x = 37,658.21
  5. Step 5: Solve for x
    x = 37,658.21/170.89
  6. Step 6: Final answer
    x = 220.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.