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Finding the Fourth Proportional to 226.93, 313.24 and 139.65

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Solution

The fourth proportional to 226.93, 313.24 and 139.65 is: 192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.93 : 313.24 = 139.65 : x
  2. Step 2: Convert to fraction form
    226.93/313.24 = 139.65/x
  3. Step 3: Cross multiply
    226.93x = 313.24 × 139.65
  4. Step 4: Simplify right side
    226.93x = 43,743.62
  5. Step 5: Solve for x
    x = 43,743.62/226.93
  6. Step 6: Final answer
    x = 192.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.