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Help your students prepare for their Maths GCSE with this free proportion worksheet of 44 questions and answers
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If two amounts are proportional then the ratio between them is always the same. Proportional relationships can be direct or inverse. In direct proportion, as one amount increases so does the other whereas in inverse proportion, as one amount increases the other decreases.Β
Given some information about a proportional relationship, we can find the constant of proportionality. This tells us how many times bigger one amount is than the other. This value will always be true for the given relationship.Β
If y is directly proportional to x then y is equal to k times x where k is the constant of proportionality.
If y is inversely proportional to x then y is equal to k divided by x where k is the constant of proportionality.
Looking forward, students can then progress to additional ratio and proportion worksheets, for example a ratio worksheet or a ratio worksheet.
For more teaching and learning support on Ratio and Proportion our GCSE maths lessons provide step by step support for all GCSE maths concepts.
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