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Finding the Fourth Proportional to 362,630.80, 543,816.60 and 125,981.20

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Solution

The fourth proportional to 362,630.80, 543,816.60 and 125,981.20 is: 188,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,630.80 : 543,816.60 = 125,981.20 : x
  2. Step 2: Convert to fraction form
    362,630.80/543,816.60 = 125,981.20/x
  3. Step 3: Cross multiply
    362,630.80x = 543,816.60 × 125,981.20
  4. Step 4: Simplify right side
    362,630.80x = 68,510,667,847.92
  5. Step 5: Solve for x
    x = 68,510,667,847.92/362,630.80
  6. Step 6: Final answer
    x = 188,926.78

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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.