Home / 286,487.46-394,852.26-209,843.71

Finding the Fourth Proportional to 286,487.46, 394,852.26 and 209,843.71

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Solution

The fourth proportional to 286,487.46, 394,852.26 and 209,843.71 is: 289,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,487.46 : 394,852.26 = 209,843.71 : x
  2. Step 2: Convert to fraction form
    286,487.46/394,852.26 = 209,843.71/x
  3. Step 3: Cross multiply
    286,487.46x = 394,852.26 × 209,843.71
  4. Step 4: Simplify right side
    286,487.46x = 82,857,262,153.15
  5. Step 5: Solve for x
    x = 82,857,262,153.15/286,487.46
  6. Step 6: Final answer
    x = 289,217.76

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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.