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Finding the Third Proportional to 81,958 and 177,038

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Solution

The third proportional to 81,958 and 177,038 is: 382,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,958 : 177,038 = 177,038 : x
  2. Step 2: Convert to fraction form
    81,958/177,038 = 177,038/x
  3. Step 3: Cross multiply
    81,958x = 177,038 × 177,038
  4. Step 4: Simplify right side
    81,958x = 31,342,453,444
  5. Step 5: Solve for x
    x = 31,342,453,444/81,958
  6. Step 6: Final answer
    x = 382,420.92

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.