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Finding the Third Proportional to 100,750.50 and 211,869

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Solution

The third proportional to 100,750.50 and 211,869 is: 445,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,750.50 : 211,869 = 211,869 : x
  2. Step 2: Convert to fraction form
    100,750.50/211,869 = 211,869/x
  3. Step 3: Cross multiply
    100,750.50x = 211,869 × 211,869
  4. Step 4: Simplify right side
    100,750.50x = 44,888,473,161
  5. Step 5: Solve for x
    x = 44,888,473,161/100,750.50
  6. Step 6: Final answer
    x = 445,540.95

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.