Finding the Fourth Proportional to 287,640.67, 431,523.28 and 110,147.68
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Solution
The fourth proportional to 287,640.67, 431,523.28 and 110,147.68 is: 165,245.37
Step by Step Solution
- Step 1: Write the proportion equation
287,640.67 : 431,523.28 = 110,147.68 : x - Step 2: Convert to fraction form
287,640.67/431,523.28 = 110,147.68/x - Step 3: Cross multiply
287,640.67x = 431,523.28 × 110,147.68 - Step 4: Simplify right side
287,640.67x = 47,531,288,835.08 - Step 5: Solve for x
x = 47,531,288,835.08/287,640.67 - Step 6: Final answer
x = 165,245.37
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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.