Home / 207,628.80-311,443.20-141,273.60

Finding the Fourth Proportional to 207,628.80, 311,443.20 and 141,273.60

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Solution

The fourth proportional to 207,628.80, 311,443.20 and 141,273.60 is: 211,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,628.80 : 311,443.20 = 141,273.60 : x
  2. Step 2: Convert to fraction form
    207,628.80/311,443.20 = 141,273.60/x
  3. Step 3: Cross multiply
    207,628.80x = 311,443.20 × 141,273.60
  4. Step 4: Simplify right side
    207,628.80x = 43,998,702,059.52
  5. Step 5: Solve for x
    x = 43,998,702,059.52/207,628.80
  6. Step 6: Final answer
    x = 211,910.40

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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.