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Finding the Fourth Proportional to 219,391.75, 302,760.62 and 118,789.75

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Solution

The fourth proportional to 219,391.75, 302,760.62 and 118,789.75 is: 163,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,391.75 : 302,760.62 = 118,789.75 : x
  2. Step 2: Convert to fraction form
    219,391.75/302,760.62 = 118,789.75/x
  3. Step 3: Cross multiply
    219,391.75x = 302,760.62 × 118,789.75
  4. Step 4: Simplify right side
    219,391.75x = 35,964,858,359.65
  5. Step 5: Solve for x
    x = 35,964,858,359.65/219,391.75
  6. Step 6: Final answer
    x = 163,929.86

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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.