Home / 308,976.20-463,464.30-131,438.60

Finding the Fourth Proportional to 308,976.20, 463,464.30 and 131,438.60

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Solution

The fourth proportional to 308,976.20, 463,464.30 and 131,438.60 is: 197,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,976.20 : 463,464.30 = 131,438.60 : x
  2. Step 2: Convert to fraction form
    308,976.20/463,464.30 = 131,438.60/x
  3. Step 3: Cross multiply
    308,976.20x = 463,464.30 × 131,438.60
  4. Step 4: Simplify right side
    308,976.20x = 60,917,098,741.98
  5. Step 5: Solve for x
    x = 60,917,098,741.98/308,976.20
  6. Step 6: Final answer
    x = 197,157.90

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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.