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Finding the Fourth Proportional to 478,091.72, 659,761.26 and 263,227.34

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Solution

The fourth proportional to 478,091.72, 659,761.26 and 263,227.34 is: 363,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,091.72 : 659,761.26 = 263,227.34 : x
  2. Step 2: Convert to fraction form
    478,091.72/659,761.26 = 263,227.34/x
  3. Step 3: Cross multiply
    478,091.72x = 659,761.26 × 263,227.34
  4. Step 4: Simplify right side
    478,091.72x = 173,667,201,504.85
  5. Step 5: Solve for x
    x = 173,667,201,504.85/478,091.72
  6. Step 6: Final answer
    x = 363,250.80

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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.