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Finding the Fourth Proportional to 311,375.60, 467,063.40 and 199,401.20

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Solution

The fourth proportional to 311,375.60, 467,063.40 and 199,401.20 is: 299,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,375.60 : 467,063.40 = 199,401.20 : x
  2. Step 2: Convert to fraction form
    311,375.60/467,063.40 = 199,401.20/x
  3. Step 3: Cross multiply
    311,375.60x = 467,063.40 × 199,401.20
  4. Step 4: Simplify right side
    311,375.60x = 93,133,002,436.08
  5. Step 5: Solve for x
    x = 93,133,002,436.08/311,375.60
  6. Step 6: Final answer
    x = 299,101.80

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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.