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Finding the Fourth Proportional to 207,592.40, 311,388.60 and 132,942.80

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Solution

The fourth proportional to 207,592.40, 311,388.60 and 132,942.80 is: 199,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,592.40 : 311,388.60 = 132,942.80 : x
  2. Step 2: Convert to fraction form
    207,592.40/311,388.60 = 132,942.80/x
  3. Step 3: Cross multiply
    207,592.40x = 311,388.60 × 132,942.80
  4. Step 4: Simplify right side
    207,592.40x = 41,396,872,372.08
  5. Step 5: Solve for x
    x = 41,396,872,372.08/207,592.40
  6. Step 6: Final answer
    x = 199,414.20

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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.