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Finding the Third Proportional to 131,712 and 285,904

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Solution

The third proportional to 131,712 and 285,904 is: 620,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,712 : 285,904 = 285,904 : x
  2. Step 2: Convert to fraction form
    131,712/285,904 = 285,904/x
  3. Step 3: Cross multiply
    131,712x = 285,904 × 285,904
  4. Step 4: Simplify right side
    131,712x = 81,741,097,216
  5. Step 5: Solve for x
    x = 81,741,097,216/131,712
  6. Step 6: Final answer
    x = 620,604.78

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.