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Finding the Fourth Proportional to 275,668.56, 380,323.08 and 156,367.44

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Solution

The fourth proportional to 275,668.56, 380,323.08 and 156,367.44 is: 215,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,668.56 : 380,323.08 = 156,367.44 : x
  2. Step 2: Convert to fraction form
    275,668.56/380,323.08 = 156,367.44/x
  3. Step 3: Cross multiply
    275,668.56x = 380,323.08 × 156,367.44
  4. Step 4: Simplify right side
    275,668.56x = 59,470,146,392.52
  5. Step 5: Solve for x
    x = 59,470,146,392.52/275,668.56
  6. Step 6: Final answer
    x = 215,730.61

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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.