Finding the Fourth Proportional to 290,043.26, 435,085.62 and 121,393.88
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Solution
The fourth proportional to 290,043.26, 435,085.62 and 121,393.88 is: 182,099.50
Step by Step Solution
- Step 1: Write the proportion equation
290,043.26 : 435,085.62 = 121,393.88 : x - Step 2: Convert to fraction form
290,043.26/435,085.62 = 121,393.88/x - Step 3: Cross multiply
290,043.26x = 435,085.62 × 121,393.88 - Step 4: Simplify right side
290,043.26x = 52,816,731,544.01 - Step 5: Solve for x
x = 52,816,731,544.01/290,043.26 - Step 6: Final answer
x = 182,099.50
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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.