Finding the Fourth Proportional to 229,138.30, 343,569.37 and 102,755.70
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Solution
The fourth proportional to 229,138.30, 343,569.37 and 102,755.70 is: 154,071.63
Step by Step Solution
- Step 1: Write the proportion equation
229,138.30 : 343,569.37 = 102,755.70 : x - Step 2: Convert to fraction form
229,138.30/343,569.37 = 102,755.70/x - Step 3: Cross multiply
229,138.30x = 343,569.37 × 102,755.70 - Step 4: Simplify right side
229,138.30x = 35,303,711,112.91 - Step 5: Solve for x
x = 35,303,711,112.91/229,138.30 - Step 6: Final answer
x = 154,071.63
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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.