Home / 286,493.26-394,860.25-209,849.52

Finding the Fourth Proportional to 286,493.26, 394,860.25 and 209,849.52

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Solution

The fourth proportional to 286,493.26, 394,860.25 and 209,849.52 is: 289,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,493.26 : 394,860.25 = 209,849.52 : x
  2. Step 2: Convert to fraction form
    286,493.26/394,860.25 = 209,849.52/x
  3. Step 3: Cross multiply
    286,493.26x = 394,860.25 × 209,849.52
  4. Step 4: Simplify right side
    286,493.26x = 82,861,233,929.58
  5. Step 5: Solve for x
    x = 82,861,233,929.58/286,493.26
  6. Step 6: Final answer
    x = 289,225.77

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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.