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Finding the Third Proportional to 196,836.75 and 431,080.50

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Solution

The third proportional to 196,836.75 and 431,080.50 is: 944,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,836.75 : 431,080.50 = 431,080.50 : x
  2. Step 2: Convert to fraction form
    196,836.75/431,080.50 = 431,080.50/x
  3. Step 3: Cross multiply
    196,836.75x = 431,080.50 × 431,080.50
  4. Step 4: Simplify right side
    196,836.75x = 185,830,397,480.25
  5. Step 5: Solve for x
    x = 185,830,397,480.25/196,836.75
  6. Step 6: Final answer
    x = 944,083.85

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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.