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Finding the Fourth Proportional to 308,850.60, 462,930.30 and 131,327.40

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Solution

The fourth proportional to 308,850.60, 462,930.30 and 131,327.40 is: 196,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,850.60 : 462,930.30 = 131,327.40 : x
  2. Step 2: Convert to fraction form
    308,850.60/462,930.30 = 131,327.40/x
  3. Step 3: Cross multiply
    308,850.60x = 462,930.30 × 131,327.40
  4. Step 4: Simplify right side
    308,850.60x = 60,795,432,680.22
  5. Step 5: Solve for x
    x = 60,795,432,680.22/308,850.60
  6. Step 6: Final answer
    x = 196,844.15

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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.