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Finding the Third Proportional to 157,070 and 327,388

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Solution

The third proportional to 157,070 and 327,388 is: 682,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,070 : 327,388 = 327,388 : x
  2. Step 2: Convert to fraction form
    157,070/327,388 = 327,388/x
  3. Step 3: Cross multiply
    157,070x = 327,388 × 327,388
  4. Step 4: Simplify right side
    157,070x = 107,182,902,544
  5. Step 5: Solve for x
    x = 107,182,902,544/157,070
  6. Step 6: Final answer
    x = 682,389.40

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.