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Finding the Fourth Proportional to 330,596.87, 495,900.77 and 143,608.37

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Solution

The fourth proportional to 330,596.87, 495,900.77 and 143,608.37 is: 215,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,596.87 : 495,900.77 = 143,608.37 : x
  2. Step 2: Convert to fraction form
    330,596.87/495,900.77 = 143,608.37/x
  3. Step 3: Cross multiply
    330,596.87x = 495,900.77 × 143,608.37
  4. Step 4: Simplify right side
    330,596.87x = 71,215,498,063.90
  5. Step 5: Solve for x
    x = 71,215,498,063.90/330,596.87
  6. Step 6: Final answer
    x = 215,414.92

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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.