Home / 192,400.20-288,989.10-185,790.60

Finding the Fourth Proportional to 192,400.20, 288,989.10 and 185,790.60

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Solution

The fourth proportional to 192,400.20, 288,989.10 and 185,790.60 is: 279,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,400.20 : 288,989.10 = 185,790.60 : x
  2. Step 2: Convert to fraction form
    192,400.20/288,989.10 = 185,790.60/x
  3. Step 3: Cross multiply
    192,400.20x = 288,989.10 × 185,790.60
  4. Step 4: Simplify right side
    192,400.20x = 53,691,458,282.46
  5. Step 5: Solve for x
    x = 53,691,458,282.46/192,400.20
  6. Step 6: Final answer
    x = 279,061.34

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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.