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Finding the Third Proportional to 339,808.50 and 475,392.75

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Solution

The third proportional to 339,808.50 and 475,392.75 is: 665,075.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,808.50 : 475,392.75 = 475,392.75 : x
  2. Step 2: Convert to fraction form
    339,808.50/475,392.75 = 475,392.75/x
  3. Step 3: Cross multiply
    339,808.50x = 475,392.75 × 475,392.75
  4. Step 4: Simplify right side
    339,808.50x = 225,998,266,752.56
  5. Step 5: Solve for x
    x = 225,998,266,752.56/339,808.50
  6. Step 6: Final answer
    x = 665,075.38

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.