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Finding the Fourth Proportional to 244.07, 336.79 and 139.13

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Solution

The fourth proportional to 244.07, 336.79 and 139.13 is: 191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.07 : 336.79 = 139.13 : x
  2. Step 2: Convert to fraction form
    244.07/336.79 = 139.13/x
  3. Step 3: Cross multiply
    244.07x = 336.79 × 139.13
  4. Step 4: Simplify right side
    244.07x = 46,857.74
  5. Step 5: Solve for x
    x = 46,857.74/244.07
  6. Step 6: Final answer
    x = 191.99

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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.