Finding the Fourth Proportional to 251,968.37, 347,716.37 and 138,791.12
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Solution
The fourth proportional to 251,968.37, 347,716.37 and 138,791.12 is: 191,531.75
Step by Step Solution
- Step 1: Write the proportion equation
251,968.37 : 347,716.37 = 138,791.12 : x - Step 2: Convert to fraction form
251,968.37/347,716.37 = 138,791.12/x - Step 3: Cross multiply
251,968.37x = 347,716.37 × 138,791.12 - Step 4: Simplify right side
251,968.37x = 48,259,942,002.10 - Step 5: Solve for x
x = 48,259,942,002.10/251,968.37 - Step 6: Final answer
x = 191,531.75
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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.