Home / 321,790.20-482,685.30-203,076.60

Finding the Fourth Proportional to 321,790.20, 482,685.30 and 203,076.60

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Solution

The fourth proportional to 321,790.20, 482,685.30 and 203,076.60 is: 304,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,790.20 : 482,685.30 = 203,076.60 : x
  2. Step 2: Convert to fraction form
    321,790.20/482,685.30 = 203,076.60/x
  3. Step 3: Cross multiply
    321,790.20x = 482,685.30 × 203,076.60
  4. Step 4: Simplify right side
    321,790.20x = 98,022,089,593.98
  5. Step 5: Solve for x
    x = 98,022,089,593.98/321,790.20
  6. Step 6: Final answer
    x = 304,614.90

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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.