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Finding the Fourth Proportional to 439.11, 605.93 and 273.26

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Solution

The fourth proportional to 439.11, 605.93 and 273.26 is: 377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.11 : 605.93 = 273.26 : x
  2. Step 2: Convert to fraction form
    439.11/605.93 = 273.26/x
  3. Step 3: Cross multiply
    439.11x = 605.93 × 273.26
  4. Step 4: Simplify right side
    439.11x = 165,576.58
  5. Step 5: Solve for x
    x = 165,576.58/439.11
  6. Step 6: Final answer
    x = 377.07

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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.