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Finding the Fourth Proportional to 170.91, 236.07 and 134.46

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Solution

The fourth proportional to 170.91, 236.07 and 134.46 is: 185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.91 : 236.07 = 134.46 : x
  2. Step 2: Convert to fraction form
    170.91/236.07 = 134.46/x
  3. Step 3: Cross multiply
    170.91x = 236.07 × 134.46
  4. Step 4: Simplify right side
    170.91x = 31,741.97
  5. Step 5: Solve for x
    x = 31,741.97/170.91
  6. Step 6: Final answer
    x = 185.72

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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.