Home / 351,783.20-485,431.92-198,834.44

Finding the Fourth Proportional to 351,783.20, 485,431.92 and 198,834.44

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Solution

The fourth proportional to 351,783.20, 485,431.92 and 198,834.44 is: 274,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,783.20 : 485,431.92 = 198,834.44 : x
  2. Step 2: Convert to fraction form
    351,783.20/485,431.92 = 198,834.44/x
  3. Step 3: Cross multiply
    351,783.20x = 485,431.92 × 198,834.44
  4. Step 4: Simplify right side
    351,783.20x = 96,520,583,971.32
  5. Step 5: Solve for x
    x = 96,520,583,971.32/351,783.20
  6. Step 6: Final answer
    x = 274,375.19

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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.