The federal government has developed the body mass index​ (BMI) to determine ideal weights. A​ person's BMI is directly proportional to his or her weight in pounds and inversely proportional to the square of his or her height in inches.​ (A BMI of 19 to 25 corresponds to a healthy​ weight.) A​ 6-foot-tall person weighing 177 lb has BMI 24. Find the BMI​ (to the nearest whole​ number) of a person whose weight is 169 lb and whose height is 65 in.