Home / 351,734.10-485,364.33-198,786.12

Finding the Fourth Proportional to 351,734.10, 485,364.33 and 198,786.12

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Solution

The fourth proportional to 351,734.10, 485,364.33 and 198,786.12 is: 274,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,734.10 : 485,364.33 = 198,786.12 : x
  2. Step 2: Convert to fraction form
    351,734.10/485,364.33 = 198,786.12/x
  3. Step 3: Cross multiply
    351,734.10x = 485,364.33 × 198,786.12
  4. Step 4: Simplify right side
    351,734.10x = 96,483,691,947.10
  5. Step 5: Solve for x
    x = 96,483,691,947.10/351,734.10
  6. Step 6: Final answer
    x = 274,308.61

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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.