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Finding the Fourth Proportional to 379,255.59, 568,905.25 and 142,600.32

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Solution

The fourth proportional to 379,255.59, 568,905.25 and 142,600.32 is: 213,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,255.59 : 568,905.25 = 142,600.32 : x
  2. Step 2: Convert to fraction form
    379,255.59/568,905.25 = 142,600.32/x
  3. Step 3: Cross multiply
    379,255.59x = 568,905.25 × 142,600.32
  4. Step 4: Simplify right side
    379,255.59x = 81,126,068,660.63
  5. Step 5: Solve for x
    x = 81,126,068,660.63/379,255.59
  6. Step 6: Final answer
    x = 213,908.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.