Home / 330,450.20-495,396.66-143,320.76

Finding the Fourth Proportional to 330,450.20, 495,396.66 and 143,320.76

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Solution

The fourth proportional to 330,450.20, 495,396.66 and 143,320.76 is: 214,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,450.20 : 495,396.66 = 143,320.76 : x
  2. Step 2: Convert to fraction form
    330,450.20/495,396.66 = 143,320.76/x
  3. Step 3: Cross multiply
    330,450.20x = 495,396.66 × 143,320.76
  4. Step 4: Simplify right side
    330,450.20x = 71,000,625,812.66
  5. Step 5: Solve for x
    x = 71,000,625,812.66/330,450.20
  6. Step 6: Final answer
    x = 214,860.29

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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.