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Finding the Fourth Proportional to 273.56, 408.03 and 265.48

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Solution

The fourth proportional to 273.56, 408.03 and 265.48 is: 395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.56 : 408.03 = 265.48 : x
  2. Step 2: Convert to fraction form
    273.56/408.03 = 265.48/x
  3. Step 3: Cross multiply
    273.56x = 408.03 × 265.48
  4. Step 4: Simplify right side
    273.56x = 108,323.80
  5. Step 5: Solve for x
    x = 108,323.80/273.56
  6. Step 6: Final answer
    x = 395.98

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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.