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Finding the Third Proportional to 209,956.50 and 216,004.50

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Solution

The third proportional to 209,956.50 and 216,004.50 is: 222,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,956.50 : 216,004.50 = 216,004.50 : x
  2. Step 2: Convert to fraction form
    209,956.50/216,004.50 = 216,004.50/x
  3. Step 3: Cross multiply
    209,956.50x = 216,004.50 × 216,004.50
  4. Step 4: Simplify right side
    209,956.50x = 46,657,944,020.25
  5. Step 5: Solve for x
    x = 46,657,944,020.25/209,956.50
  6. Step 6: Final answer
    x = 222,226.72

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.