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Finding the Fourth Proportional to 348.92, 481.62 and 274.92

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Solution

The fourth proportional to 348.92, 481.62 and 274.92 is: 379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.92 : 481.62 = 274.92 : x
  2. Step 2: Convert to fraction form
    348.92/481.62 = 274.92/x
  3. Step 3: Cross multiply
    348.92x = 481.62 × 274.92
  4. Step 4: Simplify right side
    348.92x = 132,406.97
  5. Step 5: Solve for x
    x = 132,406.97/348.92
  6. Step 6: Final answer
    x = 379.48

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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.