Finding the Fourth Proportional to 397,161, 547,704.99 and 261,310.23
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Solution
The fourth proportional to 397,161, 547,704.99 and 261,310.23 is: 360,359.95
Step by Step Solution
- Step 1: Write the proportion equation
397,161 : 547,704.99 = 261,310.23 : x - Step 2: Convert to fraction form
397,161/547,704.99 = 261,310.23/x - Step 3: Cross multiply
397,161x = 547,704.99 × 261,310.23 - Step 4: Simplify right side
397,161x = 143,120,916,909.05 - Step 5: Solve for x
x = 143,120,916,909.05/397,161 - Step 6: Final answer
x = 360,359.95
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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.