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Finding the Third Proportional to 198,386.25 and 440,917.50

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Solution

The third proportional to 198,386.25 and 440,917.50 is: 979,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,386.25 : 440,917.50 = 440,917.50 : x
  2. Step 2: Convert to fraction form
    198,386.25/440,917.50 = 440,917.50/x
  3. Step 3: Cross multiply
    198,386.25x = 440,917.50 × 440,917.50
  4. Step 4: Simplify right side
    198,386.25x = 194,408,241,806.25
  5. Step 5: Solve for x
    x = 194,408,241,806.25/198,386.25
  6. Step 6: Final answer
    x = 979,948.17

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.