A container contains pure orange juice. Harish mixes pure water equal to 1/4 th of the volume of the orange juice in the container. Manish does not know it and sells 1/4 th of this mixture and adds water to it to replenish the quantity that he sold. What is the current proportion of water and orange juice in the container?

2 : 3
3 : 2
1 : 3
3 : 4
4 : 3