Finding the Fourth Proportional to 252,911.20, 379,039.75 and 189,231.70
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Solution
The fourth proportional to 252,911.20, 379,039.75 and 189,231.70 is: 283,602.85
Step by Step Solution
- Step 1: Write the proportion equation
252,911.20 : 379,039.75 = 189,231.70 : x - Step 2: Convert to fraction form
252,911.20/379,039.75 = 189,231.70/x - Step 3: Cross multiply
252,911.20x = 379,039.75 × 189,231.70 - Step 4: Simplify right side
252,911.20x = 71,726,336,260.08 - Step 5: Solve for x
x = 71,726,336,260.08/252,911.20 - Step 6: Final answer
x = 283,602.85
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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.