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Finding the Third Proportional to 135,268 and 289,296

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Solution

The third proportional to 135,268 and 289,296 is: 618,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,268 : 289,296 = 289,296 : x
  2. Step 2: Convert to fraction form
    135,268/289,296 = 289,296/x
  3. Step 3: Cross multiply
    135,268x = 289,296 × 289,296
  4. Step 4: Simplify right side
    135,268x = 83,692,175,616
  5. Step 5: Solve for x
    x = 83,692,175,616/135,268
  6. Step 6: Final answer
    x = 618,713.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.