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Finding the Fourth Proportional to 170.26, 234.96 and 92.64

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Solution

The fourth proportional to 170.26, 234.96 and 92.64 is: 127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.26 : 234.96 = 92.64 : x
  2. Step 2: Convert to fraction form
    170.26/234.96 = 92.64/x
  3. Step 3: Cross multiply
    170.26x = 234.96 × 92.64
  4. Step 4: Simplify right side
    170.26x = 21,765.47
  5. Step 5: Solve for x
    x = 21,765.47/170.26
  6. Step 6: Final answer
    x = 127.84

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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.