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Finding the Fourth Proportional to 250,481.58, 345,668.79 and 135,763.86

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Solution

The fourth proportional to 250,481.58, 345,668.79 and 135,763.86 is: 187,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,481.58 : 345,668.79 = 135,763.86 : x
  2. Step 2: Convert to fraction form
    250,481.58/345,668.79 = 135,763.86/x
  3. Step 3: Cross multiply
    250,481.58x = 345,668.79 × 135,763.86
  4. Step 4: Simplify right side
    250,481.58x = 46,929,329,211.93
  5. Step 5: Solve for x
    x = 46,929,329,211.93/250,481.58
  6. Step 6: Final answer
    x = 187,356.41

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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.