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Finding the Third Proportional to 100,401 and 216,354

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Solution

The third proportional to 100,401 and 216,354 is: 466,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,401 : 216,354 = 216,354 : x
  2. Step 2: Convert to fraction form
    100,401/216,354 = 216,354/x
  3. Step 3: Cross multiply
    100,401x = 216,354 × 216,354
  4. Step 4: Simplify right side
    100,401x = 46,809,053,316
  5. Step 5: Solve for x
    x = 46,809,053,316/100,401
  6. Step 6: Final answer
    x = 466,220.99

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.