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Finding the Third Proportional to 366,939 and 561,348

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Solution

The third proportional to 366,939 and 561,348 is: 858,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939 : 561,348 = 561,348 : x
  2. Step 2: Convert to fraction form
    366,939/561,348 = 561,348/x
  3. Step 3: Cross multiply
    366,939x = 561,348 × 561,348
  4. Step 4: Simplify right side
    366,939x = 315,111,577,104
  5. Step 5: Solve for x
    x = 315,111,577,104/366,939
  6. Step 6: Final answer
    x = 858,757.39

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.