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Finding the Third Proportional to 99,338 and 216,124

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Solution

The third proportional to 99,338 and 216,124 is: 470,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,338 : 216,124 = 216,124 : x
  2. Step 2: Convert to fraction form
    99,338/216,124 = 216,124/x
  3. Step 3: Cross multiply
    99,338x = 216,124 × 216,124
  4. Step 4: Simplify right side
    99,338x = 46,709,583,376
  5. Step 5: Solve for x
    x = 46,709,583,376/99,338
  6. Step 6: Final answer
    x = 470,208.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.