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Finding the Third Proportional to 516.75 and 740.06

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Solution

The third proportional to 516.75 and 740.06 is: 1,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.75 : 740.06 = 740.06 : x
  2. Step 2: Convert to fraction form
    516.75/740.06 = 740.06/x
  3. Step 3: Cross multiply
    516.75x = 740.06 × 740.06
  4. Step 4: Simplify right side
    516.75x = 547,692.50
  5. Step 5: Solve for x
    x = 547,692.50/516.75
  6. Step 6: Final answer
    x = 1,059.88

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.