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Finding the Third Proportional to 203,876 and 314,719

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Solution

The third proportional to 203,876 and 314,719 is: 485,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,876 : 314,719 = 314,719 : x
  2. Step 2: Convert to fraction form
    203,876/314,719 = 314,719/x
  3. Step 3: Cross multiply
    203,876x = 314,719 × 314,719
  4. Step 4: Simplify right side
    203,876x = 99,048,048,961
  5. Step 5: Solve for x
    x = 99,048,048,961/203,876
  6. Step 6: Final answer
    x = 485,824.96

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.