Finding the Fourth Proportional to 231,961.93, 320,107.24 and 129,988.19
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Solution
The fourth proportional to 231,961.93, 320,107.24 and 129,988.19 is: 179,383.58
Step by Step Solution
- Step 1: Write the proportion equation
231,961.93 : 320,107.24 = 129,988.19 : x - Step 2: Convert to fraction form
231,961.93/320,107.24 = 129,988.19/x - Step 3: Cross multiply
231,961.93x = 320,107.24 × 129,988.19 - Step 4: Simplify right side
231,961.93x = 41,610,161,696.25 - Step 5: Solve for x
x = 41,610,161,696.25/231,961.93 - Step 6: Final answer
x = 179,383.58
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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.