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Finding the Fourth Proportional to 244.08, 336.86 and 139.17

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Solution

The fourth proportional to 244.08, 336.86 and 139.17 is: 192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.08 : 336.86 = 139.17 : x
  2. Step 2: Convert to fraction form
    244.08/336.86 = 139.17/x
  3. Step 3: Cross multiply
    244.08x = 336.86 × 139.17
  4. Step 4: Simplify right side
    244.08x = 46,880.81
  5. Step 5: Solve for x
    x = 46,880.81/244.08
  6. Step 6: Final answer
    x = 192.07

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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.