Home / 217,747.62-300,491.71-122,256.36

Finding the Fourth Proportional to 217,747.62, 300,491.71 and 122,256.36

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Solution

The fourth proportional to 217,747.62, 300,491.71 and 122,256.36 is: 168,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,747.62 : 300,491.71 = 122,256.36 : x
  2. Step 2: Convert to fraction form
    217,747.62/300,491.71 = 122,256.36/x
  3. Step 3: Cross multiply
    217,747.62x = 300,491.71 × 122,256.36
  4. Step 4: Simplify right side
    217,747.62x = 36,737,023,120.36
  5. Step 5: Solve for x
    x = 36,737,023,120.36/217,747.62
  6. Step 6: Final answer
    x = 168,713.78

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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.