Home / 268,016.82-402,036.16-68,342.38

Finding the Fourth Proportional to 268,016.82, 402,036.16 and 68,342.38

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Solution

The fourth proportional to 268,016.82, 402,036.16 and 68,342.38 is: 102,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,016.82 : 402,036.16 = 68,342.38 : x
  2. Step 2: Convert to fraction form
    268,016.82/402,036.16 = 68,342.38/x
  3. Step 3: Cross multiply
    268,016.82x = 402,036.16 × 68,342.38
  4. Step 4: Simplify right side
    268,016.82x = 27,476,109,234.11
  5. Step 5: Solve for x
    x = 27,476,109,234.11/268,016.82
  6. Step 6: Final answer
    x = 102,516.36

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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.