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Finding the Fourth Proportional to 192,503.20, 288,754.80 and 109,559.20

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Solution

The fourth proportional to 192,503.20, 288,754.80 and 109,559.20 is: 164,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,503.20 : 288,754.80 = 109,559.20 : x
  2. Step 2: Convert to fraction form
    192,503.20/288,754.80 = 109,559.20/x
  3. Step 3: Cross multiply
    192,503.20x = 288,754.80 × 109,559.20
  4. Step 4: Simplify right side
    192,503.20x = 31,635,744,884.16
  5. Step 5: Solve for x
    x = 31,635,744,884.16/192,503.20
  6. Step 6: Final answer
    x = 164,338.80

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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.