Finding the Fourth Proportional to 397,115.99, 548,099.77 and 235,940.00
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Solution
The fourth proportional to 397,115.99, 548,099.77 and 235,940.00 is: 325,644.56
Step by Step Solution
- Step 1: Write the proportion equation
397,115.99 : 548,099.77 = 235,940.00 : x - Step 2: Convert to fraction form
397,115.99/548,099.77 = 235,940.00/x - Step 3: Cross multiply
397,115.99x = 548,099.77 × 235,940.00 - Step 4: Simplify right side
397,115.99x = 129,318,660,514.20 - Step 5: Solve for x
x = 129,318,660,514.20/397,115.99 - Step 6: Final answer
x = 325,644.56
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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.