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Finding the Fourth Proportional to 298,893.78, 412,458.39 and 169,815.33

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Solution

The fourth proportional to 298,893.78, 412,458.39 and 169,815.33 is: 234,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,893.78 : 412,458.39 = 169,815.33 : x
  2. Step 2: Convert to fraction form
    298,893.78/412,458.39 = 169,815.33/x
  3. Step 3: Cross multiply
    298,893.78x = 412,458.39 × 169,815.33
  4. Step 4: Simplify right side
    298,893.78x = 70,041,757,609.12
  5. Step 5: Solve for x
    x = 70,041,757,609.12/298,893.78
  6. Step 6: Final answer
    x = 234,336.62

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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.