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Finding the Fourth Proportional to 516.20, 773.51 and 310.53

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Solution

The fourth proportional to 516.20, 773.51 and 310.53 is: 465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.20 : 773.51 = 310.53 : x
  2. Step 2: Convert to fraction form
    516.20/773.51 = 310.53/x
  3. Step 3: Cross multiply
    516.20x = 773.51 × 310.53
  4. Step 4: Simplify right side
    516.20x = 240,196.51
  5. Step 5: Solve for x
    x = 240,196.51/516.20
  6. Step 6: Final answer
    x = 465.32

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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.