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Finding the Fourth Proportional to 441.89, 662.76 and 149.60

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Solution

The fourth proportional to 441.89, 662.76 and 149.60 is: 224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.89 : 662.76 = 149.60 : x
  2. Step 2: Convert to fraction form
    441.89/662.76 = 149.60/x
  3. Step 3: Cross multiply
    441.89x = 662.76 × 149.60
  4. Step 4: Simplify right side
    441.89x = 99,148.90
  5. Step 5: Solve for x
    x = 99,148.90/441.89
  6. Step 6: Final answer
    x = 224.37

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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.