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Finding the Fourth Proportional to 220,120.40, 330,885.30 and 204,519.80

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Solution

The fourth proportional to 220,120.40, 330,885.30 and 204,519.80 is: 307,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,120.40 : 330,885.30 = 204,519.80 : x
  2. Step 2: Convert to fraction form
    220,120.40/330,885.30 = 204,519.80/x
  3. Step 3: Cross multiply
    220,120.40x = 330,885.30 × 204,519.80
  4. Step 4: Simplify right side
    220,120.40x = 67,672,595,378.94
  5. Step 5: Solve for x
    x = 67,672,595,378.94/220,120.40
  6. Step 6: Final answer
    x = 307,434.46

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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.