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Finding the Third Proportional to 305,875.50 and 664,299

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Solution

The third proportional to 305,875.50 and 664,299 is: 1,442,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,875.50 : 664,299 = 664,299 : x
  2. Step 2: Convert to fraction form
    305,875.50/664,299 = 664,299/x
  3. Step 3: Cross multiply
    305,875.50x = 664,299 × 664,299
  4. Step 4: Simplify right side
    305,875.50x = 441,293,161,401
  5. Step 5: Solve for x
    x = 441,293,161,401/305,875.50
  6. Step 6: Final answer
    x = 1,442,721.50

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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.