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Finding the Fourth Proportional to 423.96, 636.20 and 150.29

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Solution

The fourth proportional to 423.96, 636.20 and 150.29 is: 225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.96 : 636.20 = 150.29 : x
  2. Step 2: Convert to fraction form
    423.96/636.20 = 150.29/x
  3. Step 3: Cross multiply
    423.96x = 636.20 × 150.29
  4. Step 4: Simplify right side
    423.96x = 95,610.57
  5. Step 5: Solve for x
    x = 95,610.57/423.96
  6. Step 6: Final answer
    x = 225.52

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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.