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Finding the Fourth Proportional to 192,881.12, 289,365.84 and 74,553.44

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Solution

The fourth proportional to 192,881.12, 289,365.84 and 74,553.44 is: 111,847.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,881.12 : 289,365.84 = 74,553.44 : x
  2. Step 2: Convert to fraction form
    192,881.12/289,365.84 = 74,553.44/x
  3. Step 3: Cross multiply
    192,881.12x = 289,365.84 × 74,553.44
  4. Step 4: Simplify right side
    192,881.12x = 21,573,218,790.49
  5. Step 5: Solve for x
    x = 21,573,218,790.49/192,881.12
  6. Step 6: Final answer
    x = 111,847.23

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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.