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Finding the Fourth Proportional to 516.82, 713.17 and 330.37

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Solution

The fourth proportional to 516.82, 713.17 and 330.37 is: 455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.82 : 713.17 = 330.37 : x
  2. Step 2: Convert to fraction form
    516.82/713.17 = 330.37/x
  3. Step 3: Cross multiply
    516.82x = 713.17 × 330.37
  4. Step 4: Simplify right side
    516.82x = 235,609.97
  5. Step 5: Solve for x
    x = 235,609.97/516.82
  6. Step 6: Final answer
    x = 455.88

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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.