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Finding the Third Proportional to 147,327 and 321,642

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Solution

The third proportional to 147,327 and 321,642 is: 702,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,327 : 321,642 = 321,642 : x
  2. Step 2: Convert to fraction form
    147,327/321,642 = 321,642/x
  3. Step 3: Cross multiply
    147,327x = 321,642 × 321,642
  4. Step 4: Simplify right side
    147,327x = 103,453,576,164
  5. Step 5: Solve for x
    x = 103,453,576,164/147,327
  6. Step 6: Final answer
    x = 702,203.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.