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Finding the Fourth Proportional to 166.27, 248.29 and 140.62

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Solution

The fourth proportional to 166.27, 248.29 and 140.62 is: 209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.27 : 248.29 = 140.62 : x
  2. Step 2: Convert to fraction form
    166.27/248.29 = 140.62/x
  3. Step 3: Cross multiply
    166.27x = 248.29 × 140.62
  4. Step 4: Simplify right side
    166.27x = 34,914.54
  5. Step 5: Solve for x
    x = 34,914.54/166.27
  6. Step 6: Final answer
    x = 209.99

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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.