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Finding the Fourth Proportional to 444,815.20, 667,222.80 and 220,210.30

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Solution

The fourth proportional to 444,815.20, 667,222.80 and 220,210.30 is: 330,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,815.20 : 667,222.80 = 220,210.30 : x
  2. Step 2: Convert to fraction form
    444,815.20/667,222.80 = 220,210.30/x
  3. Step 3: Cross multiply
    444,815.20x = 667,222.80 × 220,210.30
  4. Step 4: Simplify right side
    444,815.20x = 146,929,332,954.84
  5. Step 5: Solve for x
    x = 146,929,332,954.84/444,815.20
  6. Step 6: Final answer
    x = 330,315.45

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Similar ratio
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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.