Finding the Fourth Proportional to 204,406.75, 281,839.98 and 139,907.05
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Solution
The fourth proportional to 204,406.75, 281,839.98 and 139,907.05 is: 192,906.55
Step by Step Solution
- Step 1: Write the proportion equation
204,406.75 : 281,839.98 = 139,907.05 : x - Step 2: Convert to fraction form
204,406.75/281,839.98 = 139,907.05/x - Step 3: Cross multiply
204,406.75x = 281,839.98 × 139,907.05 - Step 4: Simplify right side
204,406.75x = 39,431,400,173.86 - Step 5: Solve for x
x = 39,431,400,173.86/204,406.75 - Step 6: Final answer
x = 192,906.55
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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.