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Finding the Third Proportional to 190,612 and 418,088

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Solution

The third proportional to 190,612 and 418,088 is: 917,033.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,612 : 418,088 = 418,088 : x
  2. Step 2: Convert to fraction form
    190,612/418,088 = 418,088/x
  3. Step 3: Cross multiply
    190,612x = 418,088 × 418,088
  4. Step 4: Simplify right side
    190,612x = 174,797,575,744
  5. Step 5: Solve for x
    x = 174,797,575,744/190,612
  6. Step 6: Final answer
    x = 917,033.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.