Home / 351,535.20-485,148.42-198,601.44

Finding the Fourth Proportional to 351,535.20, 485,148.42 and 198,601.44

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Solution

The fourth proportional to 351,535.20, 485,148.42 and 198,601.44 is: 274,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,535.20 : 485,148.42 = 198,601.44 : x
  2. Step 2: Convert to fraction form
    351,535.20/485,148.42 = 198,601.44/x
  3. Step 3: Cross multiply
    351,535.20x = 485,148.42 × 198,601.44
  4. Step 4: Simplify right side
    351,535.20x = 96,351,174,825.72
  5. Step 5: Solve for x
    x = 96,351,174,825.72/351,535.20
  6. Step 6: Final answer
    x = 274,086.85

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1.5x scale

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.