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Finding the Fourth Proportional to 348.80, 481.56 and 250.88

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Solution

The fourth proportional to 348.80, 481.56 and 250.88 is: 346.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.80 : 481.56 = 250.88 : x
  2. Step 2: Convert to fraction form
    348.80/481.56 = 250.88/x
  3. Step 3: Cross multiply
    348.80x = 481.56 × 250.88
  4. Step 4: Simplify right side
    348.80x = 120,813.77
  5. Step 5: Solve for x
    x = 120,813.77/348.80
  6. Step 6: Final answer
    x = 346.37

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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.