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Finding the Third Proportional to 221,815.50 and 480,997.50

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Solution

The third proportional to 221,815.50 and 480,997.50 is: 1,043,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,815.50 : 480,997.50 = 480,997.50 : x
  2. Step 2: Convert to fraction form
    221,815.50/480,997.50 = 480,997.50/x
  3. Step 3: Cross multiply
    221,815.50x = 480,997.50 × 480,997.50
  4. Step 4: Simplify right side
    221,815.50x = 231,358,595,006.25
  5. Step 5: Solve for x
    x = 231,358,595,006.25/221,815.50
  6. Step 6: Final answer
    x = 1,043,022.67

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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.