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Finding the Third Proportional to 140,103 and 299,889

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Solution

The third proportional to 140,103 and 299,889 is: 641,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,103 : 299,889 = 299,889 : x
  2. Step 2: Convert to fraction form
    140,103/299,889 = 299,889/x
  3. Step 3: Cross multiply
    140,103x = 299,889 × 299,889
  4. Step 4: Simplify right side
    140,103x = 89,933,412,321
  5. Step 5: Solve for x
    x = 89,933,412,321/140,103
  6. Step 6: Final answer
    x = 641,909.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.