Home / 288,983.20-432,891.60-200,336.80

Finding the Fourth Proportional to 288,983.20, 432,891.60 and 200,336.80

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Solution

The fourth proportional to 288,983.20, 432,891.60 and 200,336.80 is: 300,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,983.20 : 432,891.60 = 200,336.80 : x
  2. Step 2: Convert to fraction form
    288,983.20/432,891.60 = 200,336.80/x
  3. Step 3: Cross multiply
    288,983.20x = 432,891.60 × 200,336.80
  4. Step 4: Simplify right side
    288,983.20x = 86,724,117,890.88
  5. Step 5: Solve for x
    x = 86,724,117,890.88/288,983.20
  6. Step 6: Final answer
    x = 300,100.90

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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.