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Finding the Third Proportional to 156,961 and 343,063

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Solution

The third proportional to 156,961 and 343,063 is: 749,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961 : 343,063 = 343,063 : x
  2. Step 2: Convert to fraction form
    156,961/343,063 = 343,063/x
  3. Step 3: Cross multiply
    156,961x = 343,063 × 343,063
  4. Step 4: Simplify right side
    156,961x = 117,692,221,969
  5. Step 5: Solve for x
    x = 117,692,221,969/156,961
  6. Step 6: Final answer
    x = 749,818.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.