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Finding the Third Proportional to 303,664 and 664,280

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Solution

The third proportional to 303,664 and 664,280 is: 1,453,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,664 : 664,280 = 664,280 : x
  2. Step 2: Convert to fraction form
    303,664/664,280 = 664,280/x
  3. Step 3: Cross multiply
    303,664x = 664,280 × 664,280
  4. Step 4: Simplify right side
    303,664x = 441,267,918,400
  5. Step 5: Solve for x
    x = 441,267,918,400/303,664
  6. Step 6: Final answer
    x = 1,453,145.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.