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Finding the Third Proportional to 100,369 and 220,699.50

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Solution

The third proportional to 100,369 and 220,699.50 is: 485,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,369 : 220,699.50 = 220,699.50 : x
  2. Step 2: Convert to fraction form
    100,369/220,699.50 = 220,699.50/x
  3. Step 3: Cross multiply
    100,369x = 220,699.50 × 220,699.50
  4. Step 4: Simplify right side
    100,369x = 48,708,269,300.25
  5. Step 5: Solve for x
    x = 48,708,269,300.25/100,369
  6. Step 6: Final answer
    x = 485,291.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.