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Finding the Fourth Proportional to 323.26, 484.48 and 149.69

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Solution

The fourth proportional to 323.26, 484.48 and 149.69 is: 224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.26 : 484.48 = 149.69 : x
  2. Step 2: Convert to fraction form
    323.26/484.48 = 149.69/x
  3. Step 3: Cross multiply
    323.26x = 484.48 × 149.69
  4. Step 4: Simplify right side
    323.26x = 72,519.01
  5. Step 5: Solve for x
    x = 72,519.01/323.26
  6. Step 6: Final answer
    x = 224.34

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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.