Finding the Fourth Proportional to 206,666.75, 285,190.40 and 114,791.99
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Solution
The fourth proportional to 206,666.75, 285,190.40 and 114,791.99 is: 158,407.56
Step by Step Solution
- Step 1: Write the proportion equation
206,666.75 : 285,190.40 = 114,791.99 : x - Step 2: Convert to fraction form
206,666.75/285,190.40 = 114,791.99/x - Step 3: Cross multiply
206,666.75x = 285,190.40 × 114,791.99 - Step 4: Simplify right side
206,666.75x = 32,737,574,812.22 - Step 5: Solve for x
x = 32,737,574,812.22/206,666.75 - Step 6: Final answer
x = 158,407.56
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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.