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Finding the Third Proportional to 193,354 and 428,180

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Solution

The third proportional to 193,354 and 428,180 is: 948,199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,354 : 428,180 = 428,180 : x
  2. Step 2: Convert to fraction form
    193,354/428,180 = 428,180/x
  3. Step 3: Cross multiply
    193,354x = 428,180 × 428,180
  4. Step 4: Simplify right side
    193,354x = 183,338,112,400
  5. Step 5: Solve for x
    x = 183,338,112,400/193,354
  6. Step 6: Final answer
    x = 948,199.22

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.