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Finding the Fourth Proportional to 326,078.96, 449,797.84 and 205,028.40

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Solution

The fourth proportional to 326,078.96, 449,797.84 and 205,028.40 is: 282,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,078.96 : 449,797.84 = 205,028.40 : x
  2. Step 2: Convert to fraction form
    326,078.96/449,797.84 = 205,028.40/x
  3. Step 3: Cross multiply
    326,078.96x = 449,797.84 × 205,028.40
  4. Step 4: Simplify right side
    326,078.96x = 92,221,331,458.66
  5. Step 5: Solve for x
    x = 92,221,331,458.66/326,078.96
  6. Step 6: Final answer
    x = 282,819.02

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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.