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Finding the Third Proportional to 100,992 and 218,698.50

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Solution

The third proportional to 100,992 and 218,698.50 is: 473,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,992 : 218,698.50 = 218,698.50 : x
  2. Step 2: Convert to fraction form
    100,992/218,698.50 = 218,698.50/x
  3. Step 3: Cross multiply
    100,992x = 218,698.50 × 218,698.50
  4. Step 4: Simplify right side
    100,992x = 47,829,033,902.25
  5. Step 5: Solve for x
    x = 47,829,033,902.25/100,992
  6. Step 6: Final answer
    x = 473,592.30

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.