Enlarge text frame proportionally numerically with content

Hello forum, I'm new and I'm coming with a question 😉 Often customers for whom I made a delivery flyer also want a poster/wall card. Is there a smoother way to simplify this? The format often changes from landscape to portrait. The delivery cards consist of tables. I know you can use shift and "." realize that, but is it also possible numerically? In other words, I enter the new width of the text frame and the content adjusts proportionally, including the font size. Greetings from Bavaria!