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Finding the Third Proportional to 103,620.50 and 221,942.50

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Solution

The third proportional to 103,620.50 and 221,942.50 is: 475,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.50 : 221,942.50 = 221,942.50 : x
  2. Step 2: Convert to fraction form
    103,620.50/221,942.50 = 221,942.50/x
  3. Step 3: Cross multiply
    103,620.50x = 221,942.50 × 221,942.50
  4. Step 4: Simplify right side
    103,620.50x = 49,258,473,306.25
  5. Step 5: Solve for x
    x = 49,258,473,306.25/103,620.50
  6. Step 6: Final answer
    x = 475,373.82

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.