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Finding the Third Proportional to 216,600.50 and 324,900.75

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Solution

The third proportional to 216,600.50 and 324,900.75 is: 487,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,600.50 : 324,900.75 = 324,900.75 : x
  2. Step 2: Convert to fraction form
    216,600.50/324,900.75 = 324,900.75/x
  3. Step 3: Cross multiply
    216,600.50x = 324,900.75 × 324,900.75
  4. Step 4: Simplify right side
    216,600.50x = 105,560,497,350.56
  5. Step 5: Solve for x
    x = 105,560,497,350.56/216,600.50
  6. Step 6: Final answer
    x = 487,351.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.