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Finding the Fourth Proportional to 170.67, 254.16 and 166.11

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Solution

The fourth proportional to 170.67, 254.16 and 166.11 is: 247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.67 : 254.16 = 166.11 : x
  2. Step 2: Convert to fraction form
    170.67/254.16 = 166.11/x
  3. Step 3: Cross multiply
    170.67x = 254.16 × 166.11
  4. Step 4: Simplify right side
    170.67x = 42,218.52
  5. Step 5: Solve for x
    x = 42,218.52/170.67
  6. Step 6: Final answer
    x = 247.37

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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.