Home / 445,634.20-668,451.30-268,049.80

Finding the Fourth Proportional to 445,634.20, 668,451.30 and 268,049.80

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Solution

The fourth proportional to 445,634.20, 668,451.30 and 268,049.80 is: 402,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,634.20 : 668,451.30 = 268,049.80 : x
  2. Step 2: Convert to fraction form
    445,634.20/668,451.30 = 268,049.80/x
  3. Step 3: Cross multiply
    445,634.20x = 668,451.30 × 268,049.80
  4. Step 4: Simplify right side
    445,634.20x = 179,178,237,274.74
  5. Step 5: Solve for x
    x = 179,178,237,274.74/445,634.20
  6. Step 6: Final answer
    x = 402,074.70

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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.