Home / 321,269.09-443,353.97-178,031.53

Finding the Fourth Proportional to 321,269.09, 443,353.97 and 178,031.53

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Solution

The fourth proportional to 321,269.09, 443,353.97 and 178,031.53 is: 245,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,269.09 : 443,353.97 = 178,031.53 : x
  2. Step 2: Convert to fraction form
    321,269.09/443,353.97 = 178,031.53/x
  3. Step 3: Cross multiply
    321,269.09x = 443,353.97 × 178,031.53
  4. Step 4: Simplify right side
    321,269.09x = 78,930,982,948.83
  5. Step 5: Solve for x
    x = 78,930,982,948.83/321,269.09
  6. Step 6: Final answer
    x = 245,684.96

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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.