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Finding the Third Proportional to 190,230 and 401,679

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Solution

The third proportional to 190,230 and 401,679 is: 848,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,230 : 401,679 = 401,679 : x
  2. Step 2: Convert to fraction form
    190,230/401,679 = 401,679/x
  3. Step 3: Cross multiply
    190,230x = 401,679 × 401,679
  4. Step 4: Simplify right side
    190,230x = 161,346,019,041
  5. Step 5: Solve for x
    x = 161,346,019,041/190,230
  6. Step 6: Final answer
    x = 848,162.85

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.