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Finding the Fourth Proportional to 654,179.78, 981,268.88 and 204,935.64

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Solution

The fourth proportional to 654,179.78, 981,268.88 and 204,935.64 is: 307,403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,179.78 : 981,268.88 = 204,935.64 : x
  2. Step 2: Convert to fraction form
    654,179.78/981,268.88 = 204,935.64/x
  3. Step 3: Cross multiply
    654,179.78x = 981,268.88 × 204,935.64
  4. Step 4: Simplify right side
    654,179.78x = 201,096,965,934.88
  5. Step 5: Solve for x
    x = 201,096,965,934.88/654,179.78
  6. Step 6: Final answer
    x = 307,403.21

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Similar ratio
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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.