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Finding the Fourth Proportional to 516.67, 713.63 and 350.61

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Solution

The fourth proportional to 516.67, 713.63 and 350.61 is: 484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.67 : 713.63 = 350.61 : x
  2. Step 2: Convert to fraction form
    516.67/713.63 = 350.61/x
  3. Step 3: Cross multiply
    516.67x = 713.63 × 350.61
  4. Step 4: Simplify right side
    516.67x = 250,205.81
  5. Step 5: Solve for x
    x = 250,205.81/516.67
  6. Step 6: Final answer
    x = 484.27

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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.