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Finding the Third Proportional to 173,268 and 378,288

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Solution

The third proportional to 173,268 and 378,288 is: 825,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,268 : 378,288 = 378,288 : x
  2. Step 2: Convert to fraction form
    173,268/378,288 = 378,288/x
  3. Step 3: Cross multiply
    173,268x = 378,288 × 378,288
  4. Step 4: Simplify right side
    173,268x = 143,101,810,944
  5. Step 5: Solve for x
    x = 143,101,810,944/173,268
  6. Step 6: Final answer
    x = 825,898.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.