Finding the Fourth Proportional to 378,181.99, 521,891.23 and 206,099.99
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Solution
The fourth proportional to 378,181.99, 521,891.23 and 206,099.99 is: 284,418.03
Step by Step Solution
- Step 1: Write the proportion equation
378,181.99 : 521,891.23 = 206,099.99 : x - Step 2: Convert to fraction form
378,181.99/521,891.23 = 206,099.99/x - Step 3: Cross multiply
378,181.99x = 521,891.23 × 206,099.99 - Step 4: Simplify right side
378,181.99x = 107,561,777,284.09 - Step 5: Solve for x
x = 107,561,777,284.09/378,181.99 - Step 6: Final answer
x = 284,418.03
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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.