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Finding the Fourth Proportional to 166.20, 240.75 and 166.20

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Solution

The fourth proportional to 166.20, 240.75 and 166.20 is: 240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.20 : 240.75 = 166.20 : x
  2. Step 2: Convert to fraction form
    166.20/240.75 = 166.20/x
  3. Step 3: Cross multiply
    166.20x = 240.75 × 166.20
  4. Step 4: Simplify right side
    166.20x = 40,012.65
  5. Step 5: Solve for x
    x = 40,012.65/166.20
  6. Step 6: Final answer
    x = 240.75

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.