(1) In the case of a person who has no means as determined by this Chapter and subject to any payment pursuant to section 179, the weekly amount of supplementary welfare allowance payable shall be as set out in column (2) of Part I of the Fourth Schedule, increased by -
(a) the amount set out in column (3) of that Part for any period during which the beneficiary has an adult dependant, and
(b) the appropriate amount set out in column (4) of that Part in respect of each child dependant.
(2) For the purposes of this section, the definition of adult dependant in section 170 and column (4) of Part I of the Fourth Schedule shall be construed as if "child dependant" were substituted for "qualified child".