Finding the Fourth Proportional to 312,141.29, 430,755.75 and 168,902.82
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Solution
The fourth proportional to 312,141.29, 430,755.75 and 168,902.82 is: 233,086.31
Step by Step Solution
- Step 1: Write the proportion equation
312,141.29 : 430,755.75 = 168,902.82 : x - Step 2: Convert to fraction form
312,141.29/430,755.75 = 168,902.82/x - Step 3: Cross multiply
312,141.29x = 430,755.75 × 168,902.82 - Step 4: Simplify right side
312,141.29x = 72,755,860,906.22 - Step 5: Solve for x
x = 72,755,860,906.22/312,141.29 - Step 6: Final answer
x = 233,086.31
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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.