Home / 207,961.60-311,942.40-74,846.20

Finding the Fourth Proportional to 207,961.60, 311,942.40 and 74,846.20

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Solution

The fourth proportional to 207,961.60, 311,942.40 and 74,846.20 is: 112,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,961.60 : 311,942.40 = 74,846.20 : x
  2. Step 2: Convert to fraction form
    207,961.60/311,942.40 = 74,846.20/x
  3. Step 3: Cross multiply
    207,961.60x = 311,942.40 × 74,846.20
  4. Step 4: Simplify right side
    207,961.60x = 23,347,703,258.88
  5. Step 5: Solve for x
    x = 23,347,703,258.88/207,961.60
  6. Step 6: Final answer
    x = 112,269.30

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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.