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Finding the Fourth Proportional to 273.25, 375.79 and 217.33

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Solution

The fourth proportional to 273.25, 375.79 and 217.33 is: 298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.25 : 375.79 = 217.33 : x
  2. Step 2: Convert to fraction form
    273.25/375.79 = 217.33/x
  3. Step 3: Cross multiply
    273.25x = 375.79 × 217.33
  4. Step 4: Simplify right side
    273.25x = 81,670.44
  5. Step 5: Solve for x
    x = 81,670.44/273.25
  6. Step 6: Final answer
    x = 298.89

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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.