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Finding the Third Proportional to 100,588.50 and 209,432.25

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Solution

The third proportional to 100,588.50 and 209,432.25 is: 436,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,588.50 : 209,432.25 = 209,432.25 : x
  2. Step 2: Convert to fraction form
    100,588.50/209,432.25 = 209,432.25/x
  3. Step 3: Cross multiply
    100,588.50x = 209,432.25 × 209,432.25
  4. Step 4: Simplify right side
    100,588.50x = 43,861,867,340.06
  5. Step 5: Solve for x
    x = 43,861,867,340.06/100,588.50
  6. Step 6: Final answer
    x = 436,052.50

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.