The experimental primary school held a group performance on campus. The ratio of the number of participants in grade 3, 4 and 5 was 2:5:3. It is known that the number of participants in grade 3 was 46. How many participants in grade 4 and 5? Although there is no point! But I hope you can have a warm heart! Please list the formula

The experimental primary school held a group performance on campus. The ratio of the number of participants in grade 3, 4 and 5 was 2:5:3. It is known that the number of participants in grade 3 was 46. How many participants in grade 4 and 5? Although there is no point! But I hope you can have a warm heart! Please list the formula

46 / 2 = 23
Grade 4 23 * 5 = 115
Grade five 23 * 3 = 69