Home / 207,727.40-311,591.10-74,628.20

Finding the Fourth Proportional to 207,727.40, 311,591.10 and 74,628.20

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Solution

The fourth proportional to 207,727.40, 311,591.10 and 74,628.20 is: 111,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,727.40 : 311,591.10 = 74,628.20 : x
  2. Step 2: Convert to fraction form
    207,727.40/311,591.10 = 74,628.20/x
  3. Step 3: Cross multiply
    207,727.40x = 311,591.10 × 74,628.20
  4. Step 4: Simplify right side
    207,727.40x = 23,253,482,929.02
  5. Step 5: Solve for x
    x = 23,253,482,929.02/207,727.40
  6. Step 6: Final answer
    x = 111,942.30

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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.