Finding the Fourth Proportional to 206,010.36, 284,170.14 and 121,057.56
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Solution
The fourth proportional to 206,010.36, 284,170.14 and 121,057.56 is: 166,986.47
Step by Step Solution
- Step 1: Write the proportion equation
206,010.36 : 284,170.14 = 121,057.56 : x - Step 2: Convert to fraction form
206,010.36/284,170.14 = 121,057.56/x - Step 3: Cross multiply
206,010.36x = 284,170.14 × 121,057.56 - Step 4: Simplify right side
206,010.36x = 34,400,943,773.26 - Step 5: Solve for x
x = 34,400,943,773.26/206,010.36 - Step 6: Final answer
x = 166,986.47
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1.5x scale
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.