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Finding the Third Proportional to 201,234 and 419,136

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Solution

The third proportional to 201,234 and 419,136 is: 872,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,234 : 419,136 = 419,136 : x
  2. Step 2: Convert to fraction form
    201,234/419,136 = 419,136/x
  3. Step 3: Cross multiply
    201,234x = 419,136 × 419,136
  4. Step 4: Simplify right side
    201,234x = 175,674,986,496
  5. Step 5: Solve for x
    x = 175,674,986,496/201,234
  6. Step 6: Final answer
    x = 872,988.59

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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.