Finding the Fourth Proportional to 251,861.44, 347,571.12 and 138,684.64
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Solution
The fourth proportional to 251,861.44, 347,571.12 and 138,684.64 is: 191,386.09
Step by Step Solution
- Step 1: Write the proportion equation
251,861.44 : 347,571.12 = 138,684.64 : x - Step 2: Convert to fraction form
251,861.44/347,571.12 = 138,684.64/x - Step 3: Cross multiply
251,861.44x = 347,571.12 × 138,684.64 - Step 4: Simplify right side
251,861.44x = 48,202,775,651.60 - Step 5: Solve for x
x = 48,202,775,651.60/251,861.44 - Step 6: Final answer
x = 191,386.09
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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.