Home / 218,429.06-327,643.20-68,682.41

Finding the Fourth Proportional to 218,429.06, 327,643.20 and 68,682.41

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Solution

The fourth proportional to 218,429.06, 327,643.20 and 68,682.41 is: 103,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,429.06 : 327,643.20 = 68,682.41 : x
  2. Step 2: Convert to fraction form
    218,429.06/327,643.20 = 68,682.41/x
  3. Step 3: Cross multiply
    218,429.06x = 327,643.20 × 68,682.41
  4. Step 4: Simplify right side
    218,429.06x = 22,503,324,596.11
  5. Step 5: Solve for x
    x = 22,503,324,596.11/218,429.06
  6. Step 6: Final answer
    x = 103,023.49

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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.