Finding the Fourth Proportional to 397,161.75, 547,706.01 and 261,310.98
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Solution
The fourth proportional to 397,161.75, 547,706.01 and 261,310.98 is: 360,360.97
Step by Step Solution
- Step 1: Write the proportion equation
397,161.75 : 547,706.01 = 261,310.98 : x - Step 2: Convert to fraction form
397,161.75/547,706.01 = 261,310.98/x - Step 3: Cross multiply
397,161.75x = 547,706.01 × 261,310.98 - Step 4: Simplify right side
397,161.75x = 143,121,594,224.99 - Step 5: Solve for x
x = 143,121,594,224.99/397,161.75 - Step 6: Final answer
x = 360,360.97
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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.