Finding the Fourth Proportional to 206,694.24, 285,324.72 and 139,716.96
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Solution
The fourth proportional to 206,694.24, 285,324.72 and 139,716.96 is: 192,867.99
Step by Step Solution
- Step 1: Write the proportion equation
206,694.24 : 285,324.72 = 139,716.96 : x - Step 2: Convert to fraction form
206,694.24/285,324.72 = 139,716.96/x - Step 3: Cross multiply
206,694.24x = 285,324.72 × 139,716.96 - Step 4: Simplify right side
206,694.24x = 39,864,702,491.25 - Step 5: Solve for x
x = 39,864,702,491.25/206,694.24 - Step 6: Final answer
x = 192,867.99
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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.