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Finding the Third Proportional to 91,387 and 190,087

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Solution

The third proportional to 91,387 and 190,087 is: 395,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,387 : 190,087 = 190,087 : x
  2. Step 2: Convert to fraction form
    91,387/190,087 = 190,087/x
  3. Step 3: Cross multiply
    91,387x = 190,087 × 190,087
  4. Step 4: Simplify right side
    91,387x = 36,133,067,569
  5. Step 5: Solve for x
    x = 36,133,067,569/91,387
  6. Step 6: Final answer
    x = 395,385.20

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.