Finding the Fourth Proportional to 281,767.55, 388,845.97 and 154,450.13
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Solution
The fourth proportional to 281,767.55, 388,845.97 and 154,450.13 is: 213,144.88
Step by Step Solution
- Step 1: Write the proportion equation
281,767.55 : 388,845.97 = 154,450.13 : x - Step 2: Convert to fraction form
281,767.55/388,845.97 = 154,450.13/x - Step 3: Cross multiply
281,767.55x = 388,845.97 × 154,450.13 - Step 4: Simplify right side
281,767.55x = 60,057,308,286.12 - Step 5: Solve for x
x = 60,057,308,286.12/281,767.55 - Step 6: Final answer
x = 213,144.88
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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.