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Finding the Third Proportional to 244,476 and 388,988

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Solution

The third proportional to 244,476 and 388,988 is: 618,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,476 : 388,988 = 388,988 : x
  2. Step 2: Convert to fraction form
    244,476/388,988 = 388,988/x
  3. Step 3: Cross multiply
    244,476x = 388,988 × 388,988
  4. Step 4: Simplify right side
    244,476x = 151,311,664,144
  5. Step 5: Solve for x
    x = 151,311,664,144/244,476
  6. Step 6: Final answer
    x = 618,922.37

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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.