3
4

=
x
8
,

4
3

=
8
x
,

3
x

=
4
8
,

x
3

=
8
4
,

3
4

=
x
8
,

4
3

=
8
x
,

3
x

=
4
8
,

x
3

=
8
4

It is very important to notice that if the ratio on the left is a ratio of number of liters of water to number of lemons, you have to do the same ratio on the right before you set them equal.
Number of lemons
Number of liters of water

=
Number of lemons
Number of liters of water

4
3

=
8
x

l
w

=
l
w

4
3

=
8
x

Height of boy
Length of shadow

=
Height of man
Length of shadow

3
7

=
H
14

3
900

=
x
300

900
3

=
300
x

3
x

=
900
300

x
3

=
300
900

3
900

=
x
300

Number of gallons
Time it takes

=
Number of gallons
Time it takes

160
2

=
G
10

Number of gallons
Time it takes

=
Number of gallons
Time it takes

160
2

=
3000
T

Height of boy
Length of shadow

=
Height of man
Length of shadow

3
7

=
H
14

3
900

=
x
300
,

900
3

=
300
x
,

3
x

=
900
300

3
900

=
x
300

# of gallons
Time it takes

=
# of gallons
Time it takes

160
2

=
G
10

# of gallons
Time it takes

=
# of gallons
Time it takes

160
2

=
3000
T

Check this site if you want to solve more proportion word problems.
Jul 03, 20 09:51 AM
factoring trinomials (ax^2 + bx + c ) when a is equal to 1 is the goal of this lesson.
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