Finding the Fourth Proportional to 285,728.10, 394,375.19 and 169,540.08
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Solution
The fourth proportional to 285,728.10, 394,375.19 and 169,540.08 is: 234,007.09
Step by Step Solution
- Step 1: Write the proportion equation
285,728.10 : 394,375.19 = 169,540.08 : x - Step 2: Convert to fraction form
285,728.10/394,375.19 = 169,540.08/x - Step 3: Cross multiply
285,728.10x = 394,375.19 × 169,540.08 - Step 4: Simplify right side
285,728.10x = 66,862,401,262.62 - Step 5: Solve for x
x = 66,862,401,262.62/285,728.10 - Step 6: Final answer
x = 234,007.09
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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.