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Finding the Fourth Proportional to 427,781.82, 641,451.23 and 228,048.56

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Solution

The fourth proportional to 427,781.82, 641,451.23 and 228,048.56 is: 341,954.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,781.82 : 641,451.23 = 228,048.56 : x
  2. Step 2: Convert to fraction form
    427,781.82/641,451.23 = 228,048.56/x
  3. Step 3: Cross multiply
    427,781.82x = 641,451.23 × 228,048.56
  4. Step 4: Simplify right side
    427,781.82x = 146,282,029,311.73
  5. Step 5: Solve for x
    x = 146,282,029,311.73/427,781.82
  6. Step 6: Final answer
    x = 341,954.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.