Finding the Fourth Proportional to 218,759.78, 327,629.79 and 211,183.19
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Solution
The fourth proportional to 218,759.78, 327,629.79 and 211,183.19 is: 316,282.56
Step by Step Solution
- Step 1: Write the proportion equation
218,759.78 : 327,629.79 = 211,183.19 : x - Step 2: Convert to fraction form
218,759.78/327,629.79 = 211,183.19/x - Step 3: Cross multiply
218,759.78x = 327,629.79 × 211,183.19 - Step 4: Simplify right side
218,759.78x = 69,189,902,553.08 - Step 5: Solve for x
x = 69,189,902,553.08/218,759.78 - Step 6: Final answer
x = 316,282.56
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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.