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Finding the Fourth Proportional to 248.06, 371.72 and 166.61

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Solution

The fourth proportional to 248.06, 371.72 and 166.61 is: 249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.06 : 371.72 = 166.61 : x
  2. Step 2: Convert to fraction form
    248.06/371.72 = 166.61/x
  3. Step 3: Cross multiply
    248.06x = 371.72 × 166.61
  4. Step 4: Simplify right side
    248.06x = 61,929.58
  5. Step 5: Solve for x
    x = 61,929.58/248.06
  6. Step 6: Final answer
    x = 249.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.