Finding the Fourth Proportional to 397,329.75, 548,315.06 and 218,481.75
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Solution
The fourth proportional to 397,329.75, 548,315.06 and 218,481.75 is: 301,504.82
Step by Step Solution
- Step 1: Write the proportion equation
397,329.75 : 548,315.06 = 218,481.75 : x - Step 2: Convert to fraction form
397,329.75/548,315.06 = 218,481.75/x - Step 3: Cross multiply
397,329.75x = 548,315.06 × 218,481.75 - Step 4: Simplify right side
397,329.75x = 119,796,833,860.16 - Step 5: Solve for x
x = 119,796,833,860.16/397,329.75 - Step 6: Final answer
x = 301,504.82
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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.