Home / 207,902.12-311,850.40-50,129.32

Finding the Fourth Proportional to 207,902.12, 311,850.40 and 50,129.32

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Solution

The fourth proportional to 207,902.12, 311,850.40 and 50,129.32 is: 75,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,902.12 : 311,850.40 = 50,129.32 : x
  2. Step 2: Convert to fraction form
    207,902.12/311,850.40 = 50,129.32/x
  3. Step 3: Cross multiply
    207,902.12x = 311,850.40 × 50,129.32
  4. Step 4: Simplify right side
    207,902.12x = 15,632,848,493.73
  5. Step 5: Solve for x
    x = 15,632,848,493.73/207,902.12
  6. Step 6: Final answer
    x = 75,193.31

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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.