Home / 321,629.13-443,901.33-178,435.31

Finding the Fourth Proportional to 321,629.13, 443,901.33 and 178,435.31

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Solution

The fourth proportional to 321,629.13, 443,901.33 and 178,435.31 is: 246,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,629.13 : 443,901.33 = 178,435.31 : x
  2. Step 2: Convert to fraction form
    321,629.13/443,901.33 = 178,435.31/x
  3. Step 3: Cross multiply
    321,629.13x = 443,901.33 × 178,435.31
  4. Step 4: Simplify right side
    321,629.13x = 79,207,669,208.46
  5. Step 5: Solve for x
    x = 79,207,669,208.46/321,629.13
  6. Step 6: Final answer
    x = 246,270.20

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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.