Home / 445,825.70-668,738.55-268,241.30

Finding the Fourth Proportional to 445,825.70, 668,738.55 and 268,241.30

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Solution

The fourth proportional to 445,825.70, 668,738.55 and 268,241.30 is: 402,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,825.70 : 668,738.55 = 268,241.30 : x
  2. Step 2: Convert to fraction form
    445,825.70/668,738.55 = 268,241.30/x
  3. Step 3: Cross multiply
    445,825.70x = 668,738.55 × 268,241.30
  4. Step 4: Simplify right side
    445,825.70x = 179,383,298,012.12
  5. Step 5: Solve for x
    x = 179,383,298,012.12/445,825.70
  6. Step 6: Final answer
    x = 402,361.95

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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.