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Finding the Third Proportional to 100,372.50 and 219,212.50

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Solution

The third proportional to 100,372.50 and 219,212.50 is: 478,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,372.50 : 219,212.50 = 219,212.50 : x
  2. Step 2: Convert to fraction form
    100,372.50/219,212.50 = 219,212.50/x
  3. Step 3: Cross multiply
    100,372.50x = 219,212.50 × 219,212.50
  4. Step 4: Simplify right side
    100,372.50x = 48,054,120,156.25
  5. Step 5: Solve for x
    x = 48,054,120,156.25/100,372.50
  6. Step 6: Final answer
    x = 478,757.83

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1.5x scale

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.