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Finding the Fourth Proportional to 192,876.60, 289,361.08 and 80,494.32

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Solution

The fourth proportional to 192,876.60, 289,361.08 and 80,494.32 is: 120,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,876.60 : 289,361.08 = 80,494.32 : x
  2. Step 2: Convert to fraction form
    192,876.60/289,361.08 = 80,494.32/x
  3. Step 3: Cross multiply
    192,876.60x = 289,361.08 × 80,494.32
  4. Step 4: Simplify right side
    192,876.60x = 23,291,923,369.07
  5. Step 5: Solve for x
    x = 23,291,923,369.07/192,876.60
  6. Step 6: Final answer
    x = 120,760.75

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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.