Finding the Fourth Proportional to 202,729.42, 279,755.30 and 112,080.09
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Solution
The fourth proportional to 202,729.42, 279,755.30 and 112,080.09 is: 154,664.28
Step by Step Solution
- Step 1: Write the proportion equation
202,729.42 : 279,755.30 = 112,080.09 : x - Step 2: Convert to fraction form
202,729.42/279,755.30 = 112,080.09/x - Step 3: Cross multiply
202,729.42x = 279,755.30 × 112,080.09 - Step 4: Simplify right side
202,729.42x = 31,355,000,531.26 - Step 5: Solve for x
x = 31,355,000,531.26/202,729.42 - Step 6: Final answer
x = 154,664.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.