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Finding the Third Proportional to 198,590 and 432,122

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Solution

The third proportional to 198,590 and 432,122 is: 940,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,590 : 432,122 = 432,122 : x
  2. Step 2: Convert to fraction form
    198,590/432,122 = 432,122/x
  3. Step 3: Cross multiply
    198,590x = 432,122 × 432,122
  4. Step 4: Simplify right side
    198,590x = 186,729,422,884
  5. Step 5: Solve for x
    x = 186,729,422,884/198,590
  6. Step 6: Final answer
    x = 940,276.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.