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Finding the Fourth Proportional to 244.02, 336.69 and 139.11

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Solution

The fourth proportional to 244.02, 336.69 and 139.11 is: 191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.02 : 336.69 = 139.11 : x
  2. Step 2: Convert to fraction form
    244.02/336.69 = 139.11/x
  3. Step 3: Cross multiply
    244.02x = 336.69 × 139.11
  4. Step 4: Simplify right side
    244.02x = 46,836.95
  5. Step 5: Solve for x
    x = 46,836.95/244.02
  6. Step 6: Final answer
    x = 191.94

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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.