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Finding the Fourth Proportional to 605.11, 833.56 and 516.31

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Solution

The fourth proportional to 605.11, 833.56 and 516.31 is: 711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.11 : 833.56 = 516.31 : x
  2. Step 2: Convert to fraction form
    605.11/833.56 = 516.31/x
  3. Step 3: Cross multiply
    605.11x = 833.56 × 516.31
  4. Step 4: Simplify right side
    605.11x = 430,375.36
  5. Step 5: Solve for x
    x = 430,375.36/605.11
  6. Step 6: Final answer
    x = 711.23

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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.