Home / 330,919.41-495,942.91-131,130.81

Finding the Fourth Proportional to 330,919.41, 495,942.91 and 131,130.81

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Solution

The fourth proportional to 330,919.41, 495,942.91 and 131,130.81 is: 196,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,919.41 : 495,942.91 = 131,130.81 : x
  2. Step 2: Convert to fraction form
    330,919.41/495,942.91 = 131,130.81/x
  3. Step 3: Cross multiply
    330,919.41x = 495,942.91 × 131,130.81
  4. Step 4: Simplify right side
    330,919.41x = 65,033,396,793.66
  5. Step 5: Solve for x
    x = 65,033,396,793.66/330,919.41
  6. Step 6: Final answer
    x = 196,523.37

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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.