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Finding the Fourth Proportional to 259,286.00, 388,941.31 and 126,007.48

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Solution

The fourth proportional to 259,286.00, 388,941.31 and 126,007.48 is: 189,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,286.00 : 388,941.31 = 126,007.48 : x
  2. Step 2: Convert to fraction form
    259,286.00/388,941.31 = 126,007.48/x
  3. Step 3: Cross multiply
    259,286.00x = 388,941.31 × 126,007.48
  4. Step 4: Simplify right side
    259,286.00x = 49,009,514,984.68
  5. Step 5: Solve for x
    x = 49,009,514,984.68/259,286.00
  6. Step 6: Final answer
    x = 189,017.21

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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.