Home / 321,534.06-443,685.02-185,611.78

Finding the Fourth Proportional to 321,534.06, 443,685.02 and 185,611.78

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Solution

The fourth proportional to 321,534.06, 443,685.02 and 185,611.78 is: 256,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,534.06 : 443,685.02 = 185,611.78 : x
  2. Step 2: Convert to fraction form
    321,534.06/443,685.02 = 185,611.78/x
  3. Step 3: Cross multiply
    321,534.06x = 443,685.02 × 185,611.78
  4. Step 4: Simplify right side
    321,534.06x = 82,353,166,321.54
  5. Step 5: Solve for x
    x = 82,353,166,321.54/321,534.06
  6. Step 6: Final answer
    x = 256,125.79

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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.