Home / 308,979.20-463,468.80-131,441.60

Finding the Fourth Proportional to 308,979.20, 463,468.80 and 131,441.60

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Solution

The fourth proportional to 308,979.20, 463,468.80 and 131,441.60 is: 197,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,979.20 : 463,468.80 = 131,441.60 : x
  2. Step 2: Convert to fraction form
    308,979.20/463,468.80 = 131,441.60/x
  3. Step 3: Cross multiply
    308,979.20x = 463,468.80 × 131,441.60
  4. Step 4: Simplify right side
    308,979.20x = 60,919,080,622.08
  5. Step 5: Solve for x
    x = 60,919,080,622.08/308,979.20
  6. Step 6: Final answer
    x = 197,162.40

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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.