Finding the Fourth Proportional to 203,211.26, 280,431.50 and 112,573.09
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Solution
The fourth proportional to 203,211.26, 280,431.50 and 112,573.09 is: 155,350.84
Step by Step Solution
- Step 1: Write the proportion equation
203,211.26 : 280,431.50 = 112,573.09 : x - Step 2: Convert to fraction form
203,211.26/280,431.50 = 112,573.09/x - Step 3: Cross multiply
203,211.26x = 280,431.50 × 112,573.09 - Step 4: Simplify right side
203,211.26x = 31,569,039,224.39 - Step 5: Solve for x
x = 31,569,039,224.39/203,211.26 - Step 6: Final answer
x = 155,350.84
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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.