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Finding the Fourth Proportional to 326,299.78, 489,544.44 and 115,954.12

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Solution

The fourth proportional to 326,299.78, 489,544.44 and 115,954.12 is: 173,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,299.78 : 489,544.44 = 115,954.12 : x
  2. Step 2: Convert to fraction form
    326,299.78/489,544.44 = 115,954.12/x
  3. Step 3: Cross multiply
    326,299.78x = 489,544.44 × 115,954.12
  4. Step 4: Simplify right side
    326,299.78x = 56,764,694,741.09
  5. Step 5: Solve for x
    x = 56,764,694,741.09/326,299.78
  6. Step 6: Final answer
    x = 173,964.86

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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.