Home / 207,923.40-311,884.19-81,474.30

Finding the Fourth Proportional to 207,923.40, 311,884.19 and 81,474.30

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Solution

The fourth proportional to 207,923.40, 311,884.19 and 81,474.30 is: 122,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,923.40 : 311,884.19 = 81,474.30 : x
  2. Step 2: Convert to fraction form
    207,923.40/311,884.19 = 81,474.30/x
  3. Step 3: Cross multiply
    207,923.40x = 311,884.19 × 81,474.30
  4. Step 4: Simplify right side
    207,923.40x = 25,410,545,653.95
  5. Step 5: Solve for x
    x = 25,410,545,653.95/207,923.40
  6. Step 6: Final answer
    x = 122,211.09

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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.