Finding the Fourth Proportional to 206,584.70, 309,877.11 and 66,441.74
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Solution
The fourth proportional to 206,584.70, 309,877.11 and 66,441.74 is: 99,662.62
Step by Step Solution
- Step 1: Write the proportion equation
206,584.70 : 309,877.11 = 66,441.74 : x - Step 2: Convert to fraction form
206,584.70/309,877.11 = 66,441.74/x - Step 3: Cross multiply
206,584.70x = 309,877.11 × 66,441.74 - Step 4: Simplify right side
206,584.70x = 20,588,772,825.19 - Step 5: Solve for x
x = 20,588,772,825.19/206,584.70 - Step 6: Final answer
x = 99,662.62
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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.