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Finding the Fourth Proportional to 244.06, 336.77 and 139.12

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Solution

The fourth proportional to 244.06, 336.77 and 139.12 is: 191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.06 : 336.77 = 139.12 : x
  2. Step 2: Convert to fraction form
    244.06/336.77 = 139.12/x
  3. Step 3: Cross multiply
    244.06x = 336.77 × 139.12
  4. Step 4: Simplify right side
    244.06x = 46,851.21
  5. Step 5: Solve for x
    x = 46,851.21/244.06
  6. Step 6: Final answer
    x = 191.96

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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.