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Finding the Third Proportional to 133,299 and 289,197

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Solution

The third proportional to 133,299 and 289,197 is: 627,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,299 : 289,197 = 289,197 : x
  2. Step 2: Convert to fraction form
    133,299/289,197 = 289,197/x
  3. Step 3: Cross multiply
    133,299x = 289,197 × 289,197
  4. Step 4: Simplify right side
    133,299x = 83,634,904,809
  5. Step 5: Solve for x
    x = 83,634,904,809/133,299
  6. Step 6: Final answer
    x = 627,423.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.