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Finding the Third Proportional to 235.62 and 516.80

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Solution

The third proportional to 235.62 and 516.80 is: 1,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.62 : 516.80 = 516.80 : x
  2. Step 2: Convert to fraction form
    235.62/516.80 = 516.80/x
  3. Step 3: Cross multiply
    235.62x = 516.80 × 516.80
  4. Step 4: Simplify right side
    235.62x = 267,079.01
  5. Step 5: Solve for x
    x = 267,079.01/235.62
  6. Step 6: Final answer
    x = 1,133.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.