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Finding the Fourth Proportional to 323,568.78, 485,354.25 and 98,928.33

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Solution

The fourth proportional to 323,568.78, 485,354.25 and 98,928.33 is: 148,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,568.78 : 485,354.25 = 98,928.33 : x
  2. Step 2: Convert to fraction form
    323,568.78/485,354.25 = 98,928.33/x
  3. Step 3: Cross multiply
    323,568.78x = 485,354.25 × 98,928.33
  4. Step 4: Simplify right side
    323,568.78x = 48,015,285,410.90
  5. Step 5: Solve for x
    x = 48,015,285,410.90/323,568.78
  6. Step 6: Final answer
    x = 148,392.83

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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.