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Finding the Fourth Proportional to 215,179.55, 322,650.83 and 88,791.07

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Solution

The fourth proportional to 215,179.55, 322,650.83 and 88,791.07 is: 133,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,179.55 : 322,650.83 = 88,791.07 : x
  2. Step 2: Convert to fraction form
    215,179.55/322,650.83 = 88,791.07/x
  3. Step 3: Cross multiply
    215,179.55x = 322,650.83 × 88,791.07
  4. Step 4: Simplify right side
    215,179.55x = 28,648,511,847.44
  5. Step 5: Solve for x
    x = 28,648,511,847.44/215,179.55
  6. Step 6: Final answer
    x = 133,137.71

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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.