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Finding the Fourth Proportional to 166.30, 248.22 and 125.52

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Solution

The fourth proportional to 166.30, 248.22 and 125.52 is: 187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.30 : 248.22 = 125.52 : x
  2. Step 2: Convert to fraction form
    166.30/248.22 = 125.52/x
  3. Step 3: Cross multiply
    166.30x = 248.22 × 125.52
  4. Step 4: Simplify right side
    166.30x = 31,156.57
  5. Step 5: Solve for x
    x = 31,156.57/166.30
  6. Step 6: Final answer
    x = 187.35

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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.