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Finding the Third Proportional to 167,478 and 378,735

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Solution

The third proportional to 167,478 and 378,735 is: 856,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,478 : 378,735 = 378,735 : x
  2. Step 2: Convert to fraction form
    167,478/378,735 = 378,735/x
  3. Step 3: Cross multiply
    167,478x = 378,735 × 378,735
  4. Step 4: Simplify right side
    167,478x = 143,440,200,225
  5. Step 5: Solve for x
    x = 143,440,200,225/167,478
  6. Step 6: Final answer
    x = 856,471.90

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.