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Finding the Third Proportional to 218,126.25 and 461,403

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Solution

The third proportional to 218,126.25 and 461,403 is: 976,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,126.25 : 461,403 = 461,403 : x
  2. Step 2: Convert to fraction form
    218,126.25/461,403 = 461,403/x
  3. Step 3: Cross multiply
    218,126.25x = 461,403 × 461,403
  4. Step 4: Simplify right side
    218,126.25x = 212,892,728,409
  5. Step 5: Solve for x
    x = 212,892,728,409/218,126.25
  6. Step 6: Final answer
    x = 976,006.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.