Finding the Fourth Proportional to 208,243.44, 287,364.60 and 122,190.84
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Solution
The fourth proportional to 208,243.44, 287,364.60 and 122,190.84 is: 168,616.70
Step by Step Solution
- Step 1: Write the proportion equation
208,243.44 : 287,364.60 = 122,190.84 : x - Step 2: Convert to fraction form
208,243.44/287,364.60 = 122,190.84/x - Step 3: Cross multiply
208,243.44x = 287,364.60 × 122,190.84 - Step 4: Simplify right side
208,243.44x = 35,113,321,860.26 - Step 5: Solve for x
x = 35,113,321,860.26/208,243.44 - Step 6: Final answer
x = 168,616.70
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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.