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Finding the Third Proportional to 343,507.50 and 519,021

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Solution

The third proportional to 343,507.50 and 519,021 is: 784,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,507.50 : 519,021 = 519,021 : x
  2. Step 2: Convert to fraction form
    343,507.50/519,021 = 519,021/x
  3. Step 3: Cross multiply
    343,507.50x = 519,021 × 519,021
  4. Step 4: Simplify right side
    343,507.50x = 269,382,798,441
  5. Step 5: Solve for x
    x = 269,382,798,441/343,507.50
  6. Step 6: Final answer
    x = 784,212.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.