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Finding the Third Proportional to 859.50 and 1,310.44

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Solution

The third proportional to 859.50 and 1,310.44 is: 1,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    859.50 : 1,310.44 = 1,310.44 : x
  2. Step 2: Convert to fraction form
    859.50/1,310.44 = 1,310.44/x
  3. Step 3: Cross multiply
    859.50x = 1,310.44 × 1,310.44
  4. Step 4: Simplify right side
    859.50x = 1,717,246.44
  5. Step 5: Solve for x
    x = 1,717,246.44/859.50
  6. Step 6: Final answer
    x = 1,997.96

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.