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Finding the Third Proportional to 61,821 and 133,650

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Solution

The third proportional to 61,821 and 133,650 is: 288,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821 : 133,650 = 133,650 : x
  2. Step 2: Convert to fraction form
    61,821/133,650 = 133,650/x
  3. Step 3: Cross multiply
    61,821x = 133,650 × 133,650
  4. Step 4: Simplify right side
    61,821x = 17,862,322,500
  5. Step 5: Solve for x
    x = 17,862,322,500/61,821
  6. Step 6: Final answer
    x = 288,936.16

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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.