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Finding the Third Proportional to 211,302 and 287,793

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Solution

The third proportional to 211,302 and 287,793 is: 391,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,302 : 287,793 = 287,793 : x
  2. Step 2: Convert to fraction form
    211,302/287,793 = 287,793/x
  3. Step 3: Cross multiply
    211,302x = 287,793 × 287,793
  4. Step 4: Simplify right side
    211,302x = 82,824,810,849
  5. Step 5: Solve for x
    x = 82,824,810,849/211,302
  6. Step 6: Final answer
    x = 391,973.62

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.