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Finding the Fourth Proportional to 192,862.92, 289,340.56 and 80,480.62

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Solution

The fourth proportional to 192,862.92, 289,340.56 and 80,480.62 is: 120,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,862.92 : 289,340.56 = 80,480.62 : x
  2. Step 2: Convert to fraction form
    192,862.92/289,340.56 = 80,480.62/x
  3. Step 3: Cross multiply
    192,862.92x = 289,340.56 × 80,480.62
  4. Step 4: Simplify right side
    192,862.92x = 23,286,307,669.52
  5. Step 5: Solve for x
    x = 23,286,307,669.52/192,862.92
  6. Step 6: Final answer
    x = 120,740.20

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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.