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Finding the Fourth Proportional to 171.22, 236.26 and 96.54

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Solution

The fourth proportional to 171.22, 236.26 and 96.54 is: 133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.22 : 236.26 = 96.54 : x
  2. Step 2: Convert to fraction form
    171.22/236.26 = 96.54/x
  3. Step 3: Cross multiply
    171.22x = 236.26 × 96.54
  4. Step 4: Simplify right side
    171.22x = 22,808.54
  5. Step 5: Solve for x
    x = 22,808.54/171.22
  6. Step 6: Final answer
    x = 133.21

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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.