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Finding the Fourth Proportional to 263,478.52, 363,600.55 and 142,619.43

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Solution

The fourth proportional to 263,478.52, 363,600.55 and 142,619.43 is: 196,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,478.52 : 363,600.55 = 142,619.43 : x
  2. Step 2: Convert to fraction form
    263,478.52/363,600.55 = 142,619.43/x
  3. Step 3: Cross multiply
    263,478.52x = 363,600.55 × 142,619.43
  4. Step 4: Simplify right side
    263,478.52x = 51,856,503,188.69
  5. Step 5: Solve for x
    x = 51,856,503,188.69/263,478.52
  6. Step 6: Final answer
    x = 196,814.92

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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.