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Finding the Fourth Proportional to 605.26, 907.11 and 331.54

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Solution

The fourth proportional to 605.26, 907.11 and 331.54 is: 496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.26 : 907.11 = 331.54 : x
  2. Step 2: Convert to fraction form
    605.26/907.11 = 331.54/x
  3. Step 3: Cross multiply
    605.26x = 907.11 × 331.54
  4. Step 4: Simplify right side
    605.26x = 300,743.25
  5. Step 5: Solve for x
    x = 300,743.25/605.26
  6. Step 6: Final answer
    x = 496.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.