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Finding the Fourth Proportional to 170.32, 234.87 and 108.08

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Solution

The fourth proportional to 170.32, 234.87 and 108.08 is: 149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.32 : 234.87 = 108.08 : x
  2. Step 2: Convert to fraction form
    170.32/234.87 = 108.08/x
  3. Step 3: Cross multiply
    170.32x = 234.87 × 108.08
  4. Step 4: Simplify right side
    170.32x = 25,384.75
  5. Step 5: Solve for x
    x = 25,384.75/170.32
  6. Step 6: Final answer
    x = 149.05

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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.