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Finding the Fourth Proportional to 216,360, 324,591.84 and 68,616

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Solution

The fourth proportional to 216,360, 324,591.84 and 68,616 is: 102,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,360 : 324,591.84 = 68,616 : x
  2. Step 2: Convert to fraction form
    216,360/324,591.84 = 68,616/x
  3. Step 3: Cross multiply
    216,360x = 324,591.84 × 68,616
  4. Step 4: Simplify right side
    216,360x = 22,272,193,693.44
  5. Step 5: Solve for x
    x = 22,272,193,693.44/216,360
  6. Step 6: Final answer
    x = 102,940.44

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