Home / 268,719.20-403,065.52-100,226.40

Finding the Fourth Proportional to 268,719.20, 403,065.52 and 100,226.40

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Solution

The fourth proportional to 268,719.20, 403,065.52 and 100,226.40 is: 150,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,719.20 : 403,065.52 = 100,226.40 : x
  2. Step 2: Convert to fraction form
    268,719.20/403,065.52 = 100,226.40/x
  3. Step 3: Cross multiply
    268,719.20x = 403,065.52 × 100,226.40
  4. Step 4: Simplify right side
    268,719.20x = 40,397,806,033.73
  5. Step 5: Solve for x
    x = 40,397,806,033.73/268,719.20
  6. Step 6: Final answer
    x = 150,334.65

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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.