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Finding the Third Proportional to 103,477 and 211,328

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Solution

The third proportional to 103,477 and 211,328 is: 431,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,477 : 211,328 = 211,328 : x
  2. Step 2: Convert to fraction form
    103,477/211,328 = 211,328/x
  3. Step 3: Cross multiply
    103,477x = 211,328 × 211,328
  4. Step 4: Simplify right side
    103,477x = 44,659,523,584
  5. Step 5: Solve for x
    x = 44,659,523,584/103,477
  6. Step 6: Final answer
    x = 431,588.89

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.