The distance from balloon to the western station is 495 miles.
Step-by-step explanation:
The distance between two weather stations are 165 miles.
The angle of the regular triangle bearing from the western station is given by
90° - 40° = 50°
The angle of the regular triangle bearing from the eastern station is given by
90° + 22° = 112°
The angle of the balloon is given by
180° - 50° - 112° = 18°
Now, to find the distance of the balloon from the western station, let us use the law of sines formula,

Let us substitute the values.
Where
and

Thus, we have,

Multiplying both sides of the equation by sin 112, we get,

Simplifying, we have,

Thus, the distance from balloon to the western station is 495 miles.