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Finding the Fourth Proportional to 311,928.60, 467,892.90 and 303,180.60

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Solution

The fourth proportional to 311,928.60, 467,892.90 and 303,180.60 is: 454,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,928.60 : 467,892.90 = 303,180.60 : x
  2. Step 2: Convert to fraction form
    311,928.60/467,892.90 = 303,180.60/x
  3. Step 3: Cross multiply
    311,928.60x = 467,892.90 × 303,180.60
  4. Step 4: Simplify right side
    311,928.60x = 141,856,050,157.74
  5. Step 5: Solve for x
    x = 141,856,050,157.74/311,928.60
  6. Step 6: Final answer
    x = 454,770.90

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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.