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Finding the Third Proportional to 156,143 and 335,966

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Solution

The third proportional to 156,143 and 335,966 is: 722,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,143 : 335,966 = 335,966 : x
  2. Step 2: Convert to fraction form
    156,143/335,966 = 335,966/x
  3. Step 3: Cross multiply
    156,143x = 335,966 × 335,966
  4. Step 4: Simplify right side
    156,143x = 112,873,153,156
  5. Step 5: Solve for x
    x = 112,873,153,156/156,143
  6. Step 6: Final answer
    x = 722,883.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.