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Finding the Third Proportional to 172,287 and 355,326.75

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Solution

The third proportional to 172,287 and 355,326.75 is: 732,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,287 : 355,326.75 = 355,326.75 : x
  2. Step 2: Convert to fraction form
    172,287/355,326.75 = 355,326.75/x
  3. Step 3: Cross multiply
    172,287x = 355,326.75 × 355,326.75
  4. Step 4: Simplify right side
    172,287x = 126,257,099,265.56
  5. Step 5: Solve for x
    x = 126,257,099,265.56/172,287
  6. Step 6: Final answer
    x = 732,830.10

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.