Finding the Fourth Proportional to 290,269.44, 435,431.66 and 112,790.14
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Solution
The fourth proportional to 290,269.44, 435,431.66 and 112,790.14 is: 169,195.90
Step by Step Solution
- Step 1: Write the proportion equation
290,269.44 : 435,431.66 = 112,790.14 : x - Step 2: Convert to fraction form
290,269.44/435,431.66 = 112,790.14/x - Step 3: Cross multiply
290,269.44x = 435,431.66 × 112,790.14 - Step 4: Simplify right side
290,269.44x = 49,112,397,891.83 - Step 5: Solve for x
x = 49,112,397,891.83/290,269.44 - Step 6: Final answer
x = 169,195.90
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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.