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Finding the Third Proportional to 244,477 and 388,991

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Solution

The third proportional to 244,477 and 388,991 is: 618,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,477 : 388,991 = 388,991 : x
  2. Step 2: Convert to fraction form
    244,477/388,991 = 388,991/x
  3. Step 3: Cross multiply
    244,477x = 388,991 × 388,991
  4. Step 4: Simplify right side
    244,477x = 151,313,998,081
  5. Step 5: Solve for x
    x = 151,313,998,081/244,477
  6. Step 6: Final answer
    x = 618,929.38

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.