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Finding the Fourth Proportional to 440.56, 660.84 and 224.29

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Solution

The fourth proportional to 440.56, 660.84 and 224.29 is: 336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.56 : 660.84 = 224.29 : x
  2. Step 2: Convert to fraction form
    440.56/660.84 = 224.29/x
  3. Step 3: Cross multiply
    440.56x = 660.84 × 224.29
  4. Step 4: Simplify right side
    440.56x = 148,219.80
  5. Step 5: Solve for x
    x = 148,219.80/440.56
  6. Step 6: Final answer
    x = 336.44

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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.