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Finding the Fourth Proportional to 323.32, 445.80 and 224.88

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Solution

The fourth proportional to 323.32, 445.80 and 224.88 is: 310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.32 : 445.80 = 224.88 : x
  2. Step 2: Convert to fraction form
    323.32/445.80 = 224.88/x
  3. Step 3: Cross multiply
    323.32x = 445.80 × 224.88
  4. Step 4: Simplify right side
    323.32x = 100,251.50
  5. Step 5: Solve for x
    x = 100,251.50/323.32
  6. Step 6: Final answer
    x = 310.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.