  The proton charge and magnetization density distributions can be related to
the well known Sachs electromagnetic form factors $G_{E,M}({\bm q}^{2})$
through Fourier transforms, only in the Breit frame. The Breit frame however
moves with relativistic velocities in the Lab and a Lorentz boost must be
applied to the form factors before extracting the static properties of the
proton from the corresponding densities. Apart from this, the Fourier transform
relating the densities and form factors is inherently a non-relativistic
expression. We show that the relativistic corrections to it can be obtained by
extending the standard Breit equation to higher orders in its $1/c^2$
expansion. We find that the inclusion of the above corrections reduces the size
of the proton determined from electron proton scattering data. Indeed the
central value of the latest proton radius of $r_p = 0.879$ fm as determined
from e-p scattering changes to $r_p = 0.8404$ fm after applying corrections.
