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Finding the Fourth Proportional to 150.69, 226.17 and 69.57

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Solution

The fourth proportional to 150.69, 226.17 and 69.57 is: 104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.69 : 226.17 = 69.57 : x
  2. Step 2: Convert to fraction form
    150.69/226.17 = 69.57/x
  3. Step 3: Cross multiply
    150.69x = 226.17 × 69.57
  4. Step 4: Simplify right side
    150.69x = 15,734.65
  5. Step 5: Solve for x
    x = 15,734.65/150.69
  6. Step 6: Final answer
    x = 104.42

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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.