Home / 321,520.14-443,697.03-178,276.50

Finding the Fourth Proportional to 321,520.14, 443,697.03 and 178,276.50

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Solution

The fourth proportional to 321,520.14, 443,697.03 and 178,276.50 is: 246,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,520.14 : 443,697.03 = 178,276.50 : x
  2. Step 2: Convert to fraction form
    321,520.14/443,697.03 = 178,276.50/x
  3. Step 3: Cross multiply
    321,520.14x = 443,697.03 × 178,276.50
  4. Step 4: Simplify right side
    321,520.14x = 79,100,753,568.80
  5. Step 5: Solve for x
    x = 79,100,753,568.80/321,520.14
  6. Step 6: Final answer
    x = 246,021.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.