I’ll quote myself to labour the point again, because it doesn’t seem to have come across:
The ratios may be pretty reasonable, but ‘being female’ is only part of the criteria.
Now narrow it down to those that are a) have enough experience to contribute something worthwhile to the panel, and b) working with the Unreal Engine. Spitballing here, if a third of your meetup group is female (830 people), and 10% of the group have the ability to validly contribute (250 people), and 5% of the group are actively working with the Unreal Engine (125 people), you’re only looking at four people in that group who meet all three criteria, assuming an even distribution of all those criteria (which may or may not be the case, of course).
Besides, why are we picking to ‘balance’ the demographics by gender anyway? What does it meaningfully contribute to the discussion? Of your four panel members, should one of them be black and one asian, and should two of them be LGBT? I mean if you’re going to ‘balance your demographics’, then surely you also need to include race and sexuality too, right?