Home / 321,320.73-443,422.64-178,090.02

Finding the Fourth Proportional to 321,320.73, 443,422.64 and 178,090.02

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Solution

The fourth proportional to 321,320.73, 443,422.64 and 178,090.02 is: 245,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,320.73 : 443,422.64 = 178,090.02 : x
  2. Step 2: Convert to fraction form
    321,320.73/443,422.64 = 178,090.02/x
  3. Step 3: Cross multiply
    321,320.73x = 443,422.64 × 178,090.02
  4. Step 4: Simplify right side
    321,320.73x = 78,969,146,826.05
  5. Step 5: Solve for x
    x = 78,969,146,826.05/321,320.73
  6. Step 6: Final answer
    x = 245,764.25

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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.