Finding the Fourth Proportional to 311,979.62, 430,556.38 and 184,725.38
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Solution
The fourth proportional to 311,979.62, 430,556.38 and 184,725.38 is: 254,935.53
Step by Step Solution
- Step 1: Write the proportion equation
311,979.62 : 430,556.38 = 184,725.38 : x - Step 2: Convert to fraction form
311,979.62/430,556.38 = 184,725.38/x - Step 3: Cross multiply
311,979.62x = 430,556.38 × 184,725.38 - Step 4: Simplify right side
311,979.62x = 79,534,690,906.92 - Step 5: Solve for x
x = 79,534,690,906.92/311,979.62 - Step 6: Final answer
x = 254,935.53
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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.