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Finding the Fourth Proportional to 225,647.92, 311,394.09 and 123,676.66

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Solution

The fourth proportional to 225,647.92, 311,394.09 and 123,676.66 is: 170,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,647.92 : 311,394.09 = 123,676.66 : x
  2. Step 2: Convert to fraction form
    225,647.92/311,394.09 = 123,676.66/x
  3. Step 3: Cross multiply
    225,647.92x = 311,394.09 × 123,676.66
  4. Step 4: Simplify right side
    225,647.92x = 38,512,181,847.97
  5. Step 5: Solve for x
    x = 38,512,181,847.97/225,647.92
  6. Step 6: Final answer
    x = 170,673.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.