Home / 499,724.20-749,367.60-200,105.20

Finding the Fourth Proportional to 499,724.20, 749,367.60 and 200,105.20

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Solution

The fourth proportional to 499,724.20, 749,367.60 and 200,105.20 is: 300,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,724.20 : 749,367.60 = 200,105.20 : x
  2. Step 2: Convert to fraction form
    499,724.20/749,367.60 = 200,105.20/x
  3. Step 3: Cross multiply
    499,724.20x = 749,367.60 × 200,105.20
  4. Step 4: Simplify right side
    499,724.20x = 149,952,353,471.52
  5. Step 5: Solve for x
    x = 149,952,353,471.52/499,724.20
  6. Step 6: Final answer
    x = 300,070.23

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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.