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Finding the Fourth Proportional to 348.72, 481.08 and 224.33

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Solution

The fourth proportional to 348.72, 481.08 and 224.33 is: 309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.72 : 481.08 = 224.33 : x
  2. Step 2: Convert to fraction form
    348.72/481.08 = 224.33/x
  3. Step 3: Cross multiply
    348.72x = 481.08 × 224.33
  4. Step 4: Simplify right side
    348.72x = 107,920.68
  5. Step 5: Solve for x
    x = 107,920.68/348.72
  6. Step 6: Final answer
    x = 309.48

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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.