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Finding the Fourth Proportional to 315,793.90, 435,747.27 and 179,833.42

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Solution

The fourth proportional to 315,793.90, 435,747.27 and 179,833.42 is: 248,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,793.90 : 435,747.27 = 179,833.42 : x
  2. Step 2: Convert to fraction form
    315,793.90/435,747.27 = 179,833.42/x
  3. Step 3: Cross multiply
    315,793.90x = 435,747.27 × 179,833.42
  4. Step 4: Simplify right side
    315,793.90x = 78,361,921,819.76
  5. Step 5: Solve for x
    x = 78,361,921,819.76/315,793.90
  6. Step 6: Final answer
    x = 248,142.61

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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.