Home / 268,928.80-403,393.20-225,626.20

Finding the Fourth Proportional to 268,928.80, 403,393.20 and 225,626.20

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Solution

The fourth proportional to 268,928.80, 403,393.20 and 225,626.20 is: 338,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,928.80 : 403,393.20 = 225,626.20 : x
  2. Step 2: Convert to fraction form
    268,928.80/403,393.20 = 225,626.20/x
  3. Step 3: Cross multiply
    268,928.80x = 403,393.20 × 225,626.20
  4. Step 4: Simplify right side
    268,928.80x = 91,016,074,821.84
  5. Step 5: Solve for x
    x = 91,016,074,821.84/268,928.80
  6. Step 6: Final answer
    x = 338,439.30

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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.