Finding the Fourth Proportional to 204,561.24, 306,883.70 and 86,232.60
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Solution
The fourth proportional to 204,561.24, 306,883.70 and 86,232.60 is: 129,366.54
Step by Step Solution
- Step 1: Write the proportion equation
204,561.24 : 306,883.70 = 86,232.60 : x - Step 2: Convert to fraction form
204,561.24/306,883.70 = 86,232.60/x - Step 3: Cross multiply
204,561.24x = 306,883.70 × 86,232.60 - Step 4: Simplify right side
204,561.24x = 26,463,379,348.62 - Step 5: Solve for x
x = 26,463,379,348.62/204,561.24 - Step 6: Final answer
x = 129,366.54
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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.