Finding the Fourth Proportional to 206,169.21, 309,261.99 and 98,072.62
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Solution
The fourth proportional to 206,169.21, 309,261.99 and 98,072.62 is: 147,112.81
Step by Step Solution
- Step 1: Write the proportion equation
206,169.21 : 309,261.99 = 98,072.62 : x - Step 2: Convert to fraction form
206,169.21/309,261.99 = 98,072.62/x - Step 3: Cross multiply
206,169.21x = 309,261.99 × 98,072.62 - Step 4: Simplify right side
206,169.21x = 30,330,131,589.04 - Step 5: Solve for x
x = 30,330,131,589.04/206,169.21 - Step 6: Final answer
x = 147,112.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.