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Q4.Check out the following numbers are in proportion
30,45,16,24
Q5.if the numbers x,12and 48 are in continued proportion ,find the value of x
Q4.
30:45::16:24
it means the ratio of 30/45 be equal to 16/24
=>30/45=2/3
=>16/24=2/3
Since , the ratio of 30/45 & 16/24 are equal.
so,30,45,16 ,24 numbers are in proportion.
Q5.
x:12::12:48
=>12×12=48x
=>144=48x
=>x=144/48=3
x=3
Extra information=>
Ratio
When a fraction shown in the form of ratio e.g,a:b then it is said to be in ratio.
Proportion
When two ratios are equal then we use proportion ::
Continued Proportion
When consecutive ratio are equal in simple words ,when the ratio of first and second quantity is equal to the ratio of second and third quantity.
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