Home / 268,338.20-402,521.07-68,660.30

Finding the Fourth Proportional to 268,338.20, 402,521.07 and 68,660.30

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Solution

The fourth proportional to 268,338.20, 402,521.07 and 68,660.30 is: 102,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,338.20 : 402,521.07 = 68,660.30 : x
  2. Step 2: Convert to fraction form
    268,338.20/402,521.07 = 68,660.30/x
  3. Step 3: Cross multiply
    268,338.20x = 402,521.07 × 68,660.30
  4. Step 4: Simplify right side
    268,338.20x = 27,637,217,422.52
  5. Step 5: Solve for x
    x = 27,637,217,422.52/268,338.20
  6. Step 6: Final answer
    x = 102,993.97

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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.