Home / 321,533.06-443,683.64-185,610.78

Finding the Fourth Proportional to 321,533.06, 443,683.64 and 185,610.78

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Solution

The fourth proportional to 321,533.06, 443,683.64 and 185,610.78 is: 256,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,533.06 : 443,683.64 = 185,610.78 : x
  2. Step 2: Convert to fraction form
    321,533.06/443,683.64 = 185,610.78/x
  3. Step 3: Cross multiply
    321,533.06x = 443,683.64 × 185,610.78
  4. Step 4: Simplify right side
    321,533.06x = 82,352,466,957.67
  5. Step 5: Solve for x
    x = 82,352,466,957.67/321,533.06
  6. Step 6: Final answer
    x = 256,124.42

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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.