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Finding the Fourth Proportional to 330,841.80, 496,019.70 and 131,063.40

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Solution

The fourth proportional to 330,841.80, 496,019.70 and 131,063.40 is: 196,498.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,841.80 : 496,019.70 = 131,063.40 : x
  2. Step 2: Convert to fraction form
    330,841.80/496,019.70 = 131,063.40/x
  3. Step 3: Cross multiply
    330,841.80x = 496,019.70 × 131,063.40
  4. Step 4: Simplify right side
    330,841.80x = 65,010,028,348.98
  5. Step 5: Solve for x
    x = 65,010,028,348.98/330,841.80
  6. Step 6: Final answer
    x = 196,498.84

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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.