Home / 321,589.02-443,788.47-178,351.74

Finding the Fourth Proportional to 321,589.02, 443,788.47 and 178,351.74

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Solution

The fourth proportional to 321,589.02, 443,788.47 and 178,351.74 is: 246,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,589.02 : 443,788.47 = 178,351.74 : x
  2. Step 2: Convert to fraction form
    321,589.02/443,788.47 = 178,351.74/x
  3. Step 3: Cross multiply
    321,589.02x = 443,788.47 × 178,351.74
  4. Step 4: Simplify right side
    321,589.02x = 79,150,445,816.44
  5. Step 5: Solve for x
    x = 79,150,445,816.44/321,589.02
  6. Step 6: Final answer
    x = 246,122.97

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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.