Display screen portion with a transitional graphical user interface

Description

FIG. 1 is a front view of a first image of a display screen portion with a transitional graphical user interface showing our new design;

FIG. 2 is a front view of a second image thereof; and,

FIG. 3 is a front view of a third image thereof.

The dashed broken line is for the purpose of showing portions of the graphical user interface that form no part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-3. The process or period in which one image transitions to another image forms no part of the claimed design.

Claims

The ornamental design for a display screen portion with a transitional graphical user interface, as shown and described.