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Finding the Fourth Proportional to 166.06, 250.34 and 143.10

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Solution

The fourth proportional to 166.06, 250.34 and 143.10 is: 215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.06 : 250.34 = 143.10 : x
  2. Step 2: Convert to fraction form
    166.06/250.34 = 143.10/x
  3. Step 3: Cross multiply
    166.06x = 250.34 × 143.10
  4. Step 4: Simplify right side
    166.06x = 35,823.75
  5. Step 5: Solve for x
    x = 35,823.75/166.06
  6. Step 6: Final answer
    x = 215.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.