Home / 321,243.20-443,319.36-178,004.96

Finding the Fourth Proportional to 321,243.20, 443,319.36 and 178,004.96

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Solution

The fourth proportional to 321,243.20, 443,319.36 and 178,004.96 is: 245,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,243.20 : 443,319.36 = 178,004.96 : x
  2. Step 2: Convert to fraction form
    321,243.20/443,319.36 = 178,004.96/x
  3. Step 3: Cross multiply
    321,243.20x = 443,319.36 × 178,004.96
  4. Step 4: Simplify right side
    321,243.20x = 78,913,044,944.03
  5. Step 5: Solve for x
    x = 78,913,044,944.03/321,243.20
  6. Step 6: Final answer
    x = 245,648.92

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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.