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Finding the Fourth Proportional to 516.35, 771.39 and 482.18

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Solution

The fourth proportional to 516.35, 771.39 and 482.18 is: 720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.35 : 771.39 = 482.18 : x
  2. Step 2: Convert to fraction form
    516.35/771.39 = 482.18/x
  3. Step 3: Cross multiply
    516.35x = 771.39 × 482.18
  4. Step 4: Simplify right side
    516.35x = 371,944.97
  5. Step 5: Solve for x
    x = 371,944.97/516.35
  6. Step 6: Final answer
    x = 720.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.