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Finding the Fourth Proportional to 516.51, 773.15 and 353.30

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Solution

The fourth proportional to 516.51, 773.15 and 353.30 is: 528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.51 : 773.15 = 353.30 : x
  2. Step 2: Convert to fraction form
    516.51/773.15 = 353.30/x
  3. Step 3: Cross multiply
    516.51x = 773.15 × 353.30
  4. Step 4: Simplify right side
    516.51x = 273,148.26
  5. Step 5: Solve for x
    x = 273,148.26/516.51
  6. Step 6: Final answer
    x = 528.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.