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Finding the Fourth Proportional to 171.22, 236.29 and 97.55

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Solution

The fourth proportional to 171.22, 236.29 and 97.55 is: 134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.22 : 236.29 = 97.55 : x
  2. Step 2: Convert to fraction form
    171.22/236.29 = 97.55/x
  3. Step 3: Cross multiply
    171.22x = 236.29 × 97.55
  4. Step 4: Simplify right side
    171.22x = 23,050.09
  5. Step 5: Solve for x
    x = 23,050.09/171.22
  6. Step 6: Final answer
    x = 134.62

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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.