1eſt vt rectangulum EBD ad rectangulum EBQ, ita
DK ad QX: & vt quadratum BK ad quadratum BX,
hoc eſt vt quadratum BD ad quadratum BQ, ita eſt
AK ad TX; erunt octo magnitudines quaternæ propor
186[Figure 186]
tionales; ſed & earum primæ, & tertiæ ſunt proportiona
les; nam eſt vt EB ad BD, hoc eſt vt rectangulum EBD
prima in primis ad quadratum BD primam in ſecundis,
ita DK tertia in primis ad AK tertiam in ſecundis; vt
DK ad QX: & vt quadratum BK ad quadratum BX,
hoc eſt vt quadratum BD ad quadratum BQ, ita eſt
AK ad TX; erunt octo magnitudines quaternæ propor
![](https://digilib.mpiwg-berlin.mpg.de/digitallibrary/servlet/Scaler?fn=/permanent/archimedes/valer_centr_043_la_1604/figures/043.01.255.1.jpg&dw=200&dh=200)
tionales; ſed & earum primæ, & tertiæ ſunt proportiona
les; nam eſt vt EB ad BD, hoc eſt vt rectangulum EBD
prima in primis ad quadratum BD primam in ſecundis,
ita DK tertia in primis ad AK tertiam in ſecundis; vt