Home / 330,440.20-495,381.66-143,310.76

Finding the Fourth Proportional to 330,440.20, 495,381.66 and 143,310.76

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Solution

The fourth proportional to 330,440.20, 495,381.66 and 143,310.76 is: 214,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,440.20 : 495,381.66 = 143,310.76 : x
  2. Step 2: Convert to fraction form
    330,440.20/495,381.66 = 143,310.76/x
  3. Step 3: Cross multiply
    330,440.20x = 495,381.66 × 143,310.76
  4. Step 4: Simplify right side
    330,440.20x = 70,993,522,184.66
  5. Step 5: Solve for x
    x = 70,993,522,184.66/330,440.20
  6. Step 6: Final answer
    x = 214,845.29

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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.