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Finding the Third Proportional to 240,905.25 and 518,809.50

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Solution

The third proportional to 240,905.25 and 518,809.50 is: 1,117,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,905.25 : 518,809.50 = 518,809.50 : x
  2. Step 2: Convert to fraction form
    240,905.25/518,809.50 = 518,809.50/x
  3. Step 3: Cross multiply
    240,905.25x = 518,809.50 × 518,809.50
  4. Step 4: Simplify right side
    240,905.25x = 269,163,297,290.25
  5. Step 5: Solve for x
    x = 269,163,297,290.25/240,905.25
  6. Step 6: Final answer
    x = 1,117,299.42

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.