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Finding the Third Proportional to 100,246.50 and 219,811.50

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Solution

The third proportional to 100,246.50 and 219,811.50 is: 481,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,246.50 : 219,811.50 = 219,811.50 : x
  2. Step 2: Convert to fraction form
    100,246.50/219,811.50 = 219,811.50/x
  3. Step 3: Cross multiply
    100,246.50x = 219,811.50 × 219,811.50
  4. Step 4: Simplify right side
    100,246.50x = 48,317,095,532.25
  5. Step 5: Solve for x
    x = 48,317,095,532.25/100,246.50
  6. Step 6: Final answer
    x = 481,982.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.