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Finding the Third Proportional to 150,781.50 and 320,881.50

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Solution

The third proportional to 150,781.50 and 320,881.50 is: 682,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,781.50 : 320,881.50 = 320,881.50 : x
  2. Step 2: Convert to fraction form
    150,781.50/320,881.50 = 320,881.50/x
  3. Step 3: Cross multiply
    150,781.50x = 320,881.50 × 320,881.50
  4. Step 4: Simplify right side
    150,781.50x = 102,964,937,042.25
  5. Step 5: Solve for x
    x = 102,964,937,042.25/150,781.50
  6. Step 6: Final answer
    x = 682,875.13

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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.