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Finding the Fourth Proportional to 349.08, 481.61 and 224.81

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Solution

The fourth proportional to 349.08, 481.61 and 224.81 is: 310.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.08 : 481.61 = 224.81 : x
  2. Step 2: Convert to fraction form
    349.08/481.61 = 224.81/x
  3. Step 3: Cross multiply
    349.08x = 481.61 × 224.81
  4. Step 4: Simplify right side
    349.08x = 108,269.62
  5. Step 5: Solve for x
    x = 108,269.62/349.08
  6. Step 6: Final answer
    x = 310.16

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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.