Home / 321,824.40-482,736.60-203,629.20

Finding the Fourth Proportional to 321,824.40, 482,736.60 and 203,629.20

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Solution

The fourth proportional to 321,824.40, 482,736.60 and 203,629.20 is: 305,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,824.40 : 482,736.60 = 203,629.20 : x
  2. Step 2: Convert to fraction form
    321,824.40/482,736.60 = 203,629.20/x
  3. Step 3: Cross multiply
    321,824.40x = 482,736.60 × 203,629.20
  4. Step 4: Simplify right side
    321,824.40x = 98,299,267,668.72
  5. Step 5: Solve for x
    x = 98,299,267,668.72/321,824.40
  6. Step 6: Final answer
    x = 305,443.80

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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.