Finding the Fourth Proportional to 311,717.09, 467,407.97 and 161,585.21
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Solution
The fourth proportional to 311,717.09, 467,407.97 and 161,585.21 is: 242,290.90
Step by Step Solution
- Step 1: Write the proportion equation
311,717.09 : 467,407.97 = 161,585.21 : x - Step 2: Convert to fraction form
311,717.09/467,407.97 = 161,585.21/x - Step 3: Cross multiply
311,717.09x = 467,407.97 × 161,585.21 - Step 4: Simplify right side
311,717.09x = 75,526,215,954.66 - Step 5: Solve for x
x = 75,526,215,954.66/311,717.09 - Step 6: Final answer
x = 242,290.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.