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Finding the Fourth Proportional to 323,591.28, 485,388 and 98,950.80

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Solution

The fourth proportional to 323,591.28, 485,388 and 98,950.80 is: 148,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,591.28 : 485,388 = 98,950.80 : x
  2. Step 2: Convert to fraction form
    323,591.28/485,388 = 98,950.80/x
  3. Step 3: Cross multiply
    323,591.28x = 485,388 × 98,950.80
  4. Step 4: Simplify right side
    323,591.28x = 48,029,530,910.40
  5. Step 5: Solve for x
    x = 48,029,530,910.40/323,591.28
  6. Step 6: Final answer
    x = 148,426.53

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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.