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Finding the Fourth Proportional to 192,587.54, 288,724.79 and 80,351.37

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Solution

The fourth proportional to 192,587.54, 288,724.79 and 80,351.37 is: 120,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,587.54 : 288,724.79 = 80,351.37 : x
  2. Step 2: Convert to fraction form
    192,587.54/288,724.79 = 80,351.37/x
  3. Step 3: Cross multiply
    192,587.54x = 288,724.79 × 80,351.37
  4. Step 4: Simplify right side
    192,587.54x = 23,199,432,630.34
  5. Step 5: Solve for x
    x = 23,199,432,630.34/192,587.54
  6. Step 6: Final answer
    x = 120,461.76

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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.