Home / 211,778.43-317,725.97-71,635.47

Finding the Fourth Proportional to 211,778.43, 317,725.97 and 71,635.47

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Solution

The fourth proportional to 211,778.43, 317,725.97 and 71,635.47 is: 107,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,778.43 : 317,725.97 = 71,635.47 : x
  2. Step 2: Convert to fraction form
    211,778.43/317,725.97 = 71,635.47/x
  3. Step 3: Cross multiply
    211,778.43x = 317,725.97 × 71,635.47
  4. Step 4: Simplify right side
    211,778.43x = 22,760,448,833.98
  5. Step 5: Solve for x
    x = 22,760,448,833.98/211,778.43
  6. Step 6: Final answer
    x = 107,472.93

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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.