Home / 321,631.56-443,851.84-178,391.60

Finding the Fourth Proportional to 321,631.56, 443,851.84 and 178,391.60

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Solution

The fourth proportional to 321,631.56, 443,851.84 and 178,391.60 is: 246,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,631.56 : 443,851.84 = 178,391.60 : x
  2. Step 2: Convert to fraction form
    321,631.56/443,851.84 = 178,391.60/x
  3. Step 3: Cross multiply
    321,631.56x = 443,851.84 × 178,391.60
  4. Step 4: Simplify right side
    321,631.56x = 79,179,441,964.78
  5. Step 5: Solve for x
    x = 79,179,441,964.78/321,631.56
  6. Step 6: Final answer
    x = 246,180.57

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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.