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Finding the Fourth Proportional to 351,087.78, 484,500.92 and 189,942.87

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Solution

The fourth proportional to 351,087.78, 484,500.92 and 189,942.87 is: 262,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,087.78 : 484,500.92 = 189,942.87 : x
  2. Step 2: Convert to fraction form
    351,087.78/484,500.92 = 189,942.87/x
  3. Step 3: Cross multiply
    351,087.78x = 484,500.92 × 189,942.87
  4. Step 4: Simplify right side
    351,087.78x = 92,027,494,312.73
  5. Step 5: Solve for x
    x = 92,027,494,312.73/351,087.78
  6. Step 6: Final answer
    x = 262,121.04

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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.