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Finding the Third Proportional to 194,971.50 and 405,231.75

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Solution

The third proportional to 194,971.50 and 405,231.75 is: 842,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,971.50 : 405,231.75 = 405,231.75 : x
  2. Step 2: Convert to fraction form
    194,971.50/405,231.75 = 405,231.75/x
  3. Step 3: Cross multiply
    194,971.50x = 405,231.75 × 405,231.75
  4. Step 4: Simplify right side
    194,971.50x = 164,212,771,208.06
  5. Step 5: Solve for x
    x = 164,212,771,208.06/194,971.50
  6. Step 6: Final answer
    x = 842,239.87

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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.