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Finding the Third Proportional to 99,964 and 209,104

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Solution

The third proportional to 99,964 and 209,104 is: 437,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,964 : 209,104 = 209,104 : x
  2. Step 2: Convert to fraction form
    99,964/209,104 = 209,104/x
  3. Step 3: Cross multiply
    99,964x = 209,104 × 209,104
  4. Step 4: Simplify right side
    99,964x = 43,724,482,816
  5. Step 5: Solve for x
    x = 43,724,482,816/99,964
  6. Step 6: Final answer
    x = 437,402.29

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.