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Finding the Third Proportional to 853.03 and 1,077.05

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Solution

The third proportional to 853.03 and 1,077.05 is: 1,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    853.03 : 1,077.05 = 1,077.05 : x
  2. Step 2: Convert to fraction form
    853.03/1,077.05 = 1,077.05/x
  3. Step 3: Cross multiply
    853.03x = 1,077.05 × 1,077.05
  4. Step 4: Simplify right side
    853.03x = 1,160,029.97
  5. Step 5: Solve for x
    x = 1,160,029.97/853.03
  6. Step 6: Final answer
    x = 1,359.89

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.