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Finding the Third Proportional to 366,976 and 561,403

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Solution

The third proportional to 366,976 and 561,403 is: 858,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,976 : 561,403 = 561,403 : x
  2. Step 2: Convert to fraction form
    366,976/561,403 = 561,403/x
  3. Step 3: Cross multiply
    366,976x = 561,403 × 561,403
  4. Step 4: Simplify right side
    366,976x = 315,173,328,409
  5. Step 5: Solve for x
    x = 315,173,328,409/366,976
  6. Step 6: Final answer
    x = 858,839.08

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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.