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Finding the Fourth Proportional to 275.80, 382.67 and 273.44

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Solution

The fourth proportional to 275.80, 382.67 and 273.44 is: 379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.80 : 382.67 = 273.44 : x
  2. Step 2: Convert to fraction form
    275.80/382.67 = 273.44/x
  3. Step 3: Cross multiply
    275.80x = 382.67 × 273.44
  4. Step 4: Simplify right side
    275.80x = 104,636.87
  5. Step 5: Solve for x
    x = 104,636.87/275.80
  6. Step 6: Final answer
    x = 379.40

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.