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Finding the Third Proportional to 203,994 and 316,647

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Solution

The third proportional to 203,994 and 316,647 is: 491,511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,994 : 316,647 = 316,647 : x
  2. Step 2: Convert to fraction form
    203,994/316,647 = 316,647/x
  3. Step 3: Cross multiply
    203,994x = 316,647 × 316,647
  4. Step 4: Simplify right side
    203,994x = 100,265,322,609
  5. Step 5: Solve for x
    x = 100,265,322,609/203,994
  6. Step 6: Final answer
    x = 491,511.14

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.