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Finding the Fourth Proportional to 192,591.96, 288,924.12 and 87,418.32

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Solution

The fourth proportional to 192,591.96, 288,924.12 and 87,418.32 is: 131,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,591.96 : 288,924.12 = 87,418.32 : x
  2. Step 2: Convert to fraction form
    192,591.96/288,924.12 = 87,418.32/x
  3. Step 3: Cross multiply
    192,591.96x = 288,924.12 × 87,418.32
  4. Step 4: Simplify right side
    192,591.96x = 25,257,261,177.88
  5. Step 5: Solve for x
    x = 25,257,261,177.88/192,591.96
  6. Step 6: Final answer
    x = 131,143.90

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1.5x scale

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.