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Finding the Third Proportional to 214,110 and 320,628

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Solution

The third proportional to 214,110 and 320,628 is: 480,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,110 : 320,628 = 320,628 : x
  2. Step 2: Convert to fraction form
    214,110/320,628 = 320,628/x
  3. Step 3: Cross multiply
    214,110x = 320,628 × 320,628
  4. Step 4: Simplify right side
    214,110x = 102,802,314,384
  5. Step 5: Solve for x
    x = 102,802,314,384/214,110
  6. Step 6: Final answer
    x = 480,137.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.