Home / 208,326.54-312,528.69-68,183.58

Finding the Fourth Proportional to 208,326.54, 312,528.69 and 68,183.58

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Solution

The fourth proportional to 208,326.54, 312,528.69 and 68,183.58 is: 102,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,326.54 : 312,528.69 = 68,183.58 : x
  2. Step 2: Convert to fraction form
    208,326.54/312,528.69 = 68,183.58/x
  3. Step 3: Cross multiply
    208,326.54x = 312,528.69 × 68,183.58
  4. Step 4: Simplify right side
    208,326.54x = 21,309,324,936.91
  5. Step 5: Solve for x
    x = 21,309,324,936.91/208,326.54
  6. Step 6: Final answer
    x = 102,288.10

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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.