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Finding the Third Proportional to 213,667 and 455,936

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Solution

The third proportional to 213,667 and 455,936 is: 972,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,667 : 455,936 = 455,936 : x
  2. Step 2: Convert to fraction form
    213,667/455,936 = 455,936/x
  3. Step 3: Cross multiply
    213,667x = 455,936 × 455,936
  4. Step 4: Simplify right side
    213,667x = 207,877,636,096
  5. Step 5: Solve for x
    x = 207,877,636,096/213,667
  6. Step 6: Final answer
    x = 972,904.74

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.