Home / 207,904.20-311,856.30-192,157.80

Finding the Fourth Proportional to 207,904.20, 311,856.30 and 192,157.80

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Solution

The fourth proportional to 207,904.20, 311,856.30 and 192,157.80 is: 288,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,904.20 : 311,856.30 = 192,157.80 : x
  2. Step 2: Convert to fraction form
    207,904.20/311,856.30 = 192,157.80/x
  3. Step 3: Cross multiply
    207,904.20x = 311,856.30 × 192,157.80
  4. Step 4: Simplify right side
    207,904.20x = 59,925,620,524.14
  5. Step 5: Solve for x
    x = 59,925,620,524.14/207,904.20
  6. Step 6: Final answer
    x = 288,236.70

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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.