Finding the Fourth Proportional to 428,234.70, 590,940.61 and 237,236.70
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Solution
The fourth proportional to 428,234.70, 590,940.61 and 237,236.70 is: 327,373.75
Step by Step Solution
- Step 1: Write the proportion equation
428,234.70 : 590,940.61 = 237,236.70 : x - Step 2: Convert to fraction form
428,234.70/590,940.61 = 237,236.70/x - Step 3: Cross multiply
428,234.70x = 590,940.61 × 237,236.70 - Step 4: Simplify right side
428,234.70x = 140,192,800,212.39 - Step 5: Solve for x
x = 140,192,800,212.39/428,234.70 - Step 6: Final answer
x = 327,373.75
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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.