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Finding the Third Proportional to 149,636 and 320,011

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Solution

The third proportional to 149,636 and 320,011 is: 684,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,636 : 320,011 = 320,011 : x
  2. Step 2: Convert to fraction form
    149,636/320,011 = 320,011/x
  3. Step 3: Cross multiply
    149,636x = 320,011 × 320,011
  4. Step 4: Simplify right side
    149,636x = 102,407,040,121
  5. Step 5: Solve for x
    x = 102,407,040,121/149,636
  6. Step 6: Final answer
    x = 684,374.35

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.