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Finding the Third Proportional to 245,809 and 516,338

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Solution

The third proportional to 245,809 and 516,338 is: 1,084,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,809 : 516,338 = 516,338 : x
  2. Step 2: Convert to fraction form
    245,809/516,338 = 516,338/x
  3. Step 3: Cross multiply
    245,809x = 516,338 × 516,338
  4. Step 4: Simplify right side
    245,809x = 266,604,930,244
  5. Step 5: Solve for x
    x = 266,604,930,244/245,809
  6. Step 6: Final answer
    x = 1,084,601.99

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.