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Finding the Third Proportional to 178,963 and 385,947

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Solution

The third proportional to 178,963 and 385,947 is: 832,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,963 : 385,947 = 385,947 : x
  2. Step 2: Convert to fraction form
    178,963/385,947 = 385,947/x
  3. Step 3: Cross multiply
    178,963x = 385,947 × 385,947
  4. Step 4: Simplify right side
    178,963x = 148,955,086,809
  5. Step 5: Solve for x
    x = 148,955,086,809/178,963
  6. Step 6: Final answer
    x = 832,323.37

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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.