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Finding the Third Proportional to 198,412 and 434,083

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Solution

The third proportional to 198,412 and 434,083 is: 949,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,412 : 434,083 = 434,083 : x
  2. Step 2: Convert to fraction form
    198,412/434,083 = 434,083/x
  3. Step 3: Cross multiply
    198,412x = 434,083 × 434,083
  4. Step 4: Simplify right side
    198,412x = 188,428,050,889
  5. Step 5: Solve for x
    x = 188,428,050,889/198,412
  6. Step 6: Final answer
    x = 949,680.72

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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.