Home / 208,105.28-312,204-114,562.88

Finding the Fourth Proportional to 208,105.28, 312,204 and 114,562.88

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Solution

The fourth proportional to 208,105.28, 312,204 and 114,562.88 is: 171,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,105.28 : 312,204 = 114,562.88 : x
  2. Step 2: Convert to fraction form
    208,105.28/312,204 = 114,562.88/x
  3. Step 3: Cross multiply
    208,105.28x = 312,204 × 114,562.88
  4. Step 4: Simplify right side
    208,105.28x = 35,766,989,387.52
  5. Step 5: Solve for x
    x = 35,766,989,387.52/208,105.28
  6. Step 6: Final answer
    x = 171,869.69

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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.