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Finding the Third Proportional to 150,623 and 321,262

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Solution

The third proportional to 150,623 and 321,262 is: 685,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,623 : 321,262 = 321,262 : x
  2. Step 2: Convert to fraction form
    150,623/321,262 = 321,262/x
  3. Step 3: Cross multiply
    150,623x = 321,262 × 321,262
  4. Step 4: Simplify right side
    150,623x = 103,209,272,644
  5. Step 5: Solve for x
    x = 103,209,272,644/150,623
  6. Step 6: Final answer
    x = 685,215.89

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.