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Finding the Fourth Proportional to 330,843.80, 496,022.70 and 131,065.40

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Solution

The fourth proportional to 330,843.80, 496,022.70 and 131,065.40 is: 196,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,843.80 : 496,022.70 = 131,065.40 : x
  2. Step 2: Convert to fraction form
    330,843.80/496,022.70 = 131,065.40/x
  3. Step 3: Cross multiply
    330,843.80x = 496,022.70 × 131,065.40
  4. Step 4: Simplify right side
    330,843.80x = 65,011,413,584.58
  5. Step 5: Solve for x
    x = 65,011,413,584.58/330,843.80
  6. Step 6: Final answer
    x = 196,501.83

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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.