Finding the Fourth Proportional to 206,379.09, 284,777.78 and 121,479.75
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Solution
The fourth proportional to 206,379.09, 284,777.78 and 121,479.75 is: 167,627.12
Step by Step Solution
- Step 1: Write the proportion equation
206,379.09 : 284,777.78 = 121,479.75 : x - Step 2: Convert to fraction form
206,379.09/284,777.78 = 121,479.75/x - Step 3: Cross multiply
206,379.09x = 284,777.78 × 121,479.75 - Step 4: Simplify right side
206,379.09x = 34,594,732,912.56 - Step 5: Solve for x
x = 34,594,732,912.56/206,379.09 - Step 6: Final answer
x = 167,627.12
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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.