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Finding the Fourth Proportional to 192,322.86, 288,517.10 and 85,745.49

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Solution

The fourth proportional to 192,322.86, 288,517.10 and 85,745.49 is: 128,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,322.86 : 288,517.10 = 85,745.49 : x
  2. Step 2: Convert to fraction form
    192,322.86/288,517.10 = 85,745.49/x
  3. Step 3: Cross multiply
    192,322.86x = 288,517.10 × 85,745.49
  4. Step 4: Simplify right side
    192,322.86x = 24,739,039,684.15
  5. Step 5: Solve for x
    x = 24,739,039,684.15/192,322.86
  6. Step 6: Final answer
    x = 128,632.86

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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.