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Finding the Third Proportional to 250,699 and 388,357

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Solution

The third proportional to 250,699 and 388,357 is: 601,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,699 : 388,357 = 388,357 : x
  2. Step 2: Convert to fraction form
    250,699/388,357 = 388,357/x
  3. Step 3: Cross multiply
    250,699x = 388,357 × 388,357
  4. Step 4: Simplify right side
    250,699x = 150,821,159,449
  5. Step 5: Solve for x
    x = 150,821,159,449/250,699
  6. Step 6: Final answer
    x = 601,602.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.