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Finding the Fourth Proportional to 349.15, 481.44 and 224.80

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Solution

The fourth proportional to 349.15, 481.44 and 224.80 is: 309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.15 : 481.44 = 224.80 : x
  2. Step 2: Convert to fraction form
    349.15/481.44 = 224.80/x
  3. Step 3: Cross multiply
    349.15x = 481.44 × 224.80
  4. Step 4: Simplify right side
    349.15x = 108,227.71
  5. Step 5: Solve for x
    x = 108,227.71/349.15
  6. Step 6: Final answer
    x = 309.97

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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.