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Finding the Third Proportional to 133,971 and 288,974

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Solution

The third proportional to 133,971 and 288,974 is: 623,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,971 : 288,974 = 288,974 : x
  2. Step 2: Convert to fraction form
    133,971/288,974 = 288,974/x
  3. Step 3: Cross multiply
    133,971x = 288,974 × 288,974
  4. Step 4: Simplify right side
    133,971x = 83,505,972,676
  5. Step 5: Solve for x
    x = 83,505,972,676/133,971
  6. Step 6: Final answer
    x = 623,313.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.