Finding the Fourth Proportional to 312,190.88, 430,821.84 and 168,950.96
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Solution
The fourth proportional to 312,190.88, 430,821.84 and 168,950.96 is: 233,151.47
Step by Step Solution
- Step 1: Write the proportion equation
312,190.88 : 430,821.84 = 168,950.96 : x - Step 2: Convert to fraction form
312,190.88/430,821.84 = 168,950.96/x - Step 3: Cross multiply
312,190.88x = 430,821.84 × 168,950.96 - Step 4: Simplify right side
312,190.88x = 72,787,763,456.97 - Step 5: Solve for x
x = 72,787,763,456.97/312,190.88 - Step 6: Final answer
x = 233,151.47
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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.