Home / 331,025.60-496,538.40-198,315.20

Finding the Fourth Proportional to 331,025.60, 496,538.40 and 198,315.20

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Solution

The fourth proportional to 331,025.60, 496,538.40 and 198,315.20 is: 297,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,025.60 : 496,538.40 = 198,315.20 : x
  2. Step 2: Convert to fraction form
    331,025.60/496,538.40 = 198,315.20/x
  3. Step 3: Cross multiply
    331,025.60x = 496,538.40 × 198,315.20
  4. Step 4: Simplify right side
    331,025.60x = 98,471,112,103.68
  5. Step 5: Solve for x
    x = 98,471,112,103.68/331,025.60
  6. Step 6: Final answer
    x = 297,472.80

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1.5x scale

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.