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Finding the Third Proportional to 100,813 and 220,072.50

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Solution

The third proportional to 100,813 and 220,072.50 is: 480,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,813 : 220,072.50 = 220,072.50 : x
  2. Step 2: Convert to fraction form
    100,813/220,072.50 = 220,072.50/x
  3. Step 3: Cross multiply
    100,813x = 220,072.50 × 220,072.50
  4. Step 4: Simplify right side
    100,813x = 48,431,905,256.25
  5. Step 5: Solve for x
    x = 48,431,905,256.25/100,813
  6. Step 6: Final answer
    x = 480,413.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.