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Finding the Third Proportional to 218,965.50 and 470,667

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Solution

The third proportional to 218,965.50 and 470,667 is: 1,011,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,965.50 : 470,667 = 470,667 : x
  2. Step 2: Convert to fraction form
    218,965.50/470,667 = 470,667/x
  3. Step 3: Cross multiply
    218,965.50x = 470,667 × 470,667
  4. Step 4: Simplify right side
    218,965.50x = 221,527,424,889
  5. Step 5: Solve for x
    x = 221,527,424,889/218,965.50
  6. Step 6: Final answer
    x = 1,011,700.13

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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.