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Finding the Fourth Proportional to 218,225.85, 327,339.18 and 68,477.64

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Solution

The fourth proportional to 218,225.85, 327,339.18 and 68,477.64 is: 102,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,225.85 : 327,339.18 = 68,477.64 : x
  2. Step 2: Convert to fraction form
    218,225.85/327,339.18 = 68,477.64/x
  3. Step 3: Cross multiply
    218,225.85x = 327,339.18 × 68,477.64
  4. Step 4: Simplify right side
    218,225.85x = 22,415,414,525.94
  5. Step 5: Solve for x
    x = 22,415,414,525.94/218,225.85
  6. Step 6: Final answer
    x = 102,716.59

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1.5x scale

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.