Home / 198,485.22-298,110.80-170,086.56

Finding the Fourth Proportional to 198,485.22, 298,110.80 and 170,086.56

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Solution

The fourth proportional to 198,485.22, 298,110.80 and 170,086.56 is: 255,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,485.22 : 298,110.80 = 170,086.56 : x
  2. Step 2: Convert to fraction form
    198,485.22/298,110.80 = 170,086.56/x
  3. Step 3: Cross multiply
    198,485.22x = 298,110.80 × 170,086.56
  4. Step 4: Simplify right side
    198,485.22x = 50,704,640,470.85
  5. Step 5: Solve for x
    x = 50,704,640,470.85/198,485.22
  6. Step 6: Final answer
    x = 255,458.02

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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.