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Finding the Fourth Proportional to 481,639.66, 664,662.73 and 266,793.64

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Solution

The fourth proportional to 481,639.66, 664,662.73 and 266,793.64 is: 368,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,639.66 : 664,662.73 = 266,793.64 : x
  2. Step 2: Convert to fraction form
    481,639.66/664,662.73 = 266,793.64/x
  3. Step 3: Cross multiply
    481,639.66x = 664,662.73 × 266,793.64
  4. Step 4: Simplify right side
    481,639.66x = 177,327,789,109.04
  5. Step 5: Solve for x
    x = 177,327,789,109.04/481,639.66
  6. Step 6: Final answer
    x = 368,175.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.