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Finding the Fourth Proportional to 244.05, 336.71 and 139.14

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Solution

The fourth proportional to 244.05, 336.71 and 139.14 is: 191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.05 : 336.71 = 139.14 : x
  2. Step 2: Convert to fraction form
    244.05/336.71 = 139.14/x
  3. Step 3: Cross multiply
    244.05x = 336.71 × 139.14
  4. Step 4: Simplify right side
    244.05x = 46,849.13
  5. Step 5: Solve for x
    x = 46,849.13/244.05
  6. Step 6: Final answer
    x = 191.97

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Why These Related Problems?

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