Home / 204,387.35-306,493.52-71,228.21

Finding the Fourth Proportional to 204,387.35, 306,493.52 and 71,228.21

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Solution

The fourth proportional to 204,387.35, 306,493.52 and 71,228.21 is: 106,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,387.35 : 306,493.52 = 71,228.21 : x
  2. Step 2: Convert to fraction form
    204,387.35/306,493.52 = 71,228.21/x
  3. Step 3: Cross multiply
    204,387.35x = 306,493.52 × 71,228.21
  4. Step 4: Simplify right side
    204,387.35x = 21,830,982,917.59
  5. Step 5: Solve for x
    x = 21,830,982,917.59/204,387.35
  6. Step 6: Final answer
    x = 106,811.81

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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.