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Finding the Third Proportional to 207,622.50 and 311,433

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Solution

The third proportional to 207,622.50 and 311,433 is: 467,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,622.50 : 311,433 = 311,433 : x
  2. Step 2: Convert to fraction form
    207,622.50/311,433 = 311,433/x
  3. Step 3: Cross multiply
    207,622.50x = 311,433 × 311,433
  4. Step 4: Simplify right side
    207,622.50x = 96,990,513,489
  5. Step 5: Solve for x
    x = 96,990,513,489/207,622.50
  6. Step 6: Final answer
    x = 467,148.38

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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.