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Finding the Fourth Proportional to 273.97, 408.69 and 264.49

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Solution

The fourth proportional to 273.97, 408.69 and 264.49 is: 394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.97 : 408.69 = 264.49 : x
  2. Step 2: Convert to fraction form
    273.97/408.69 = 264.49/x
  3. Step 3: Cross multiply
    273.97x = 408.69 × 264.49
  4. Step 4: Simplify right side
    273.97x = 108,094.42
  5. Step 5: Solve for x
    x = 108,094.42/273.97
  6. Step 6: Final answer
    x = 394.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.