Finding the Fourth Proportional to 378,661.70, 522,554.62 and 206,583.53
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Solution
The fourth proportional to 378,661.70, 522,554.62 and 206,583.53 is: 285,086.07
Step by Step Solution
- Step 1: Write the proportion equation
378,661.70 : 522,554.62 = 206,583.53 : x - Step 2: Convert to fraction form
378,661.70/522,554.62 = 206,583.53/x - Step 3: Cross multiply
378,661.70x = 522,554.62 × 206,583.53 - Step 4: Simplify right side
378,661.70x = 107,951,177,633.87 - Step 5: Solve for x
x = 107,951,177,633.87/378,661.70 - Step 6: Final answer
x = 285,086.07
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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.