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Finding the Fourth Proportional to 192,028.80, 287,956.80 and 73,660.80

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Solution

The fourth proportional to 192,028.80, 287,956.80 and 73,660.80 is: 110,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,028.80 : 287,956.80 = 73,660.80 : x
  2. Step 2: Convert to fraction form
    192,028.80/287,956.80 = 73,660.80/x
  3. Step 3: Cross multiply
    192,028.80x = 287,956.80 × 73,660.80
  4. Step 4: Simplify right side
    192,028.80x = 21,211,128,253.44
  5. Step 5: Solve for x
    x = 21,211,128,253.44/192,028.80
  6. Step 6: Final answer
    x = 110,458.06

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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.