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Finding the Fourth Proportional to 323,906.70, 485,860.05 and 99,265.35

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Solution

The fourth proportional to 323,906.70, 485,860.05 and 99,265.35 is: 148,898.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,906.70 : 485,860.05 = 99,265.35 : x
  2. Step 2: Convert to fraction form
    323,906.70/485,860.05 = 99,265.35/x
  3. Step 3: Cross multiply
    323,906.70x = 485,860.05 × 99,265.35
  4. Step 4: Simplify right side
    323,906.70x = 48,229,067,914.27
  5. Step 5: Solve for x
    x = 48,229,067,914.27/323,906.70
  6. Step 6: Final answer
    x = 148,898.03

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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.