Home / 231,121.80-346,731.30-131,200.20

Finding the Fourth Proportional to 231,121.80, 346,731.30 and 131,200.20

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Solution

The fourth proportional to 231,121.80, 346,731.30 and 131,200.20 is: 196,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,121.80 : 346,731.30 = 131,200.20 : x
  2. Step 2: Convert to fraction form
    231,121.80/346,731.30 = 131,200.20/x
  3. Step 3: Cross multiply
    231,121.80x = 346,731.30 × 131,200.20
  4. Step 4: Simplify right side
    231,121.80x = 45,491,215,906.26
  5. Step 5: Solve for x
    x = 45,491,215,906.26/231,121.80
  6. Step 6: Final answer
    x = 196,827.89

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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.