Home / 217,634.64-300,258-137,067.18

Finding the Fourth Proportional to 217,634.64, 300,258 and 137,067.18

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Solution

The fourth proportional to 217,634.64, 300,258 and 137,067.18 is: 189,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,634.64 : 300,258 = 137,067.18 : x
  2. Step 2: Convert to fraction form
    217,634.64/300,258 = 137,067.18/x
  3. Step 3: Cross multiply
    217,634.64x = 300,258 × 137,067.18
  4. Step 4: Simplify right side
    217,634.64x = 41,155,517,332.44
  5. Step 5: Solve for x
    x = 41,155,517,332.44/217,634.64
  6. Step 6: Final answer
    x = 189,103.71

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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.