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Finding the Fourth Proportional to 349.12, 481.33 and 224.56

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Solution

The fourth proportional to 349.12, 481.33 and 224.56 is: 309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.12 : 481.33 = 224.56 : x
  2. Step 2: Convert to fraction form
    349.12/481.33 = 224.56/x
  3. Step 3: Cross multiply
    349.12x = 481.33 × 224.56
  4. Step 4: Simplify right side
    349.12x = 108,087.46
  5. Step 5: Solve for x
    x = 108,087.46/349.12
  6. Step 6: Final answer
    x = 309.60

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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.