Home / 321,016.42-481,261.92-121,223.44

Finding the Fourth Proportional to 321,016.42, 481,261.92 and 121,223.44

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Solution

The fourth proportional to 321,016.42, 481,261.92 and 121,223.44 is: 181,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,016.42 : 481,261.92 = 121,223.44 : x
  2. Step 2: Convert to fraction form
    321,016.42/481,261.92 = 121,223.44/x
  3. Step 3: Cross multiply
    321,016.42x = 481,261.92 × 121,223.44
  4. Step 4: Simplify right side
    321,016.42x = 58,340,225,483.40
  5. Step 5: Solve for x
    x = 58,340,225,483.40/321,016.42
  6. Step 6: Final answer
    x = 181,735.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.