Home / 321,928.36-444,257.78-178,689.64

Finding the Fourth Proportional to 321,928.36, 444,257.78 and 178,689.64

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Solution

The fourth proportional to 321,928.36, 444,257.78 and 178,689.64 is: 246,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,928.36 : 444,257.78 = 178,689.64 : x
  2. Step 2: Convert to fraction form
    321,928.36/444,257.78 = 178,689.64/x
  3. Step 3: Cross multiply
    321,928.36x = 444,257.78 × 178,689.64
  4. Step 4: Simplify right side
    321,928.36x = 79,384,262,775.40
  5. Step 5: Solve for x
    x = 79,384,262,775.40/321,928.36
  6. Step 6: Final answer
    x = 246,589.84

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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.