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Finding the Third Proportional to 190,296 and 418,257

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Solution

The third proportional to 190,296 and 418,257 is: 919,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,296 : 418,257 = 418,257 : x
  2. Step 2: Convert to fraction form
    190,296/418,257 = 418,257/x
  3. Step 3: Cross multiply
    190,296x = 418,257 × 418,257
  4. Step 4: Simplify right side
    190,296x = 174,938,918,049
  5. Step 5: Solve for x
    x = 174,938,918,049/190,296
  6. Step 6: Final answer
    x = 919,298.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.