Home / 321,120.22-443,145.86-177,889.54

Finding the Fourth Proportional to 321,120.22, 443,145.86 and 177,889.54

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Solution

The fourth proportional to 321,120.22, 443,145.86 and 177,889.54 is: 245,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,120.22 : 443,145.86 = 177,889.54 : x
  2. Step 2: Convert to fraction form
    321,120.22/443,145.86 = 177,889.54/x
  3. Step 3: Cross multiply
    321,120.22x = 443,145.86 × 177,889.54
  4. Step 4: Simplify right side
    321,120.22x = 78,831,013,188.30
  5. Step 5: Solve for x
    x = 78,831,013,188.30/321,120.22
  6. Step 6: Final answer
    x = 245,487.54

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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.