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Finding the Fourth Proportional to 447.75, 618.03 and 273.06

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Solution

The fourth proportional to 447.75, 618.03 and 273.06 is: 376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.75 : 618.03 = 273.06 : x
  2. Step 2: Convert to fraction form
    447.75/618.03 = 273.06/x
  3. Step 3: Cross multiply
    447.75x = 618.03 × 273.06
  4. Step 4: Simplify right side
    447.75x = 168,759.27
  5. Step 5: Solve for x
    x = 168,759.27/447.75
  6. Step 6: Final answer
    x = 376.91

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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.