Majoritarian systems differ from proportional representation in how they allocate seats in the legislature. In majoritarian systems, such as first-past-the-post, the candidate with the most votes in a constituency wins, which can lead to a concentration of power among a few parties. This system often results in a lack of representation for minority groups. In contrast, proportional representation allocates seats based on the percentage of votes each party receives, promoting a more inclusive and diverse legislative body. Consequently, proportional systems tend to encourage multiparty politics and better reflect the electorate's preferences.