Home / 208,013.40-312,028.74-173,198.52

Finding the Fourth Proportional to 208,013.40, 312,028.74 and 173,198.52

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Solution

The fourth proportional to 208,013.40, 312,028.74 and 173,198.52 is: 259,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,013.40 : 312,028.74 = 173,198.52 : x
  2. Step 2: Convert to fraction form
    208,013.40/312,028.74 = 173,198.52/x
  3. Step 3: Cross multiply
    208,013.40x = 312,028.74 × 173,198.52
  4. Step 4: Simplify right side
    208,013.40x = 54,042,915,965.46
  5. Step 5: Solve for x
    x = 54,042,915,965.46/208,013.40
  6. Step 6: Final answer
    x = 259,804.97

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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.