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Finding the Third Proportional to 180,036 and 393,966

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Solution

The third proportional to 180,036 and 393,966 is: 862,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,036 : 393,966 = 393,966 : x
  2. Step 2: Convert to fraction form
    180,036/393,966 = 393,966/x
  3. Step 3: Cross multiply
    180,036x = 393,966 × 393,966
  4. Step 4: Simplify right side
    180,036x = 155,209,209,156
  5. Step 5: Solve for x
    x = 155,209,209,156/180,036
  6. Step 6: Final answer
    x = 862,100.96

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.