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Finding the Fourth Proportional to 170.08, 254.05 and 161.17

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Solution

The fourth proportional to 170.08, 254.05 and 161.17 is: 240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.08 : 254.05 = 161.17 : x
  2. Step 2: Convert to fraction form
    170.08/254.05 = 161.17/x
  3. Step 3: Cross multiply
    170.08x = 254.05 × 161.17
  4. Step 4: Simplify right side
    170.08x = 40,944.65
  5. Step 5: Solve for x
    x = 40,944.65/170.08
  6. Step 6: Final answer
    x = 240.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.