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Finding the Fourth Proportional to 330,811.80, 496,217.70 and 302,818.20

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Solution

The fourth proportional to 330,811.80, 496,217.70 and 302,818.20 is: 454,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,811.80 : 496,217.70 = 302,818.20 : x
  2. Step 2: Convert to fraction form
    330,811.80/496,217.70 = 302,818.20/x
  3. Step 3: Cross multiply
    330,811.80x = 496,217.70 × 302,818.20
  4. Step 4: Simplify right side
    330,811.80x = 150,263,750,722.14
  5. Step 5: Solve for x
    x = 150,263,750,722.14/330,811.80
  6. Step 6: Final answer
    x = 454,227.30

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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.