Home / 234,679.20-352,015.60-76,912.80

Finding the Fourth Proportional to 234,679.20, 352,015.60 and 76,912.80

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Solution

The fourth proportional to 234,679.20, 352,015.60 and 76,912.80 is: 115,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,679.20 : 352,015.60 = 76,912.80 : x
  2. Step 2: Convert to fraction form
    234,679.20/352,015.60 = 76,912.80/x
  3. Step 3: Cross multiply
    234,679.20x = 352,015.60 × 76,912.80
  4. Step 4: Simplify right side
    234,679.20x = 27,074,505,439.68
  5. Step 5: Solve for x
    x = 27,074,505,439.68/234,679.20
  6. Step 6: Final answer
    x = 115,368.15

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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.