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Finding the Fourth Proportional to 170.91, 236.12 and 134.00

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Solution

The fourth proportional to 170.91, 236.12 and 134.00 is: 185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.91 : 236.12 = 134.00 : x
  2. Step 2: Convert to fraction form
    170.91/236.12 = 134.00/x
  3. Step 3: Cross multiply
    170.91x = 236.12 × 134.00
  4. Step 4: Simplify right side
    170.91x = 31,640.44
  5. Step 5: Solve for x
    x = 31,640.44/170.91
  6. Step 6: Final answer
    x = 185.13

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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.