Finding the Fourth Proportional to 397,431.26, 548,595.96 and 236,285.48
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Solution
The fourth proportional to 397,431.26, 548,595.96 and 236,285.48 is: 326,157.69
Step by Step Solution
- Step 1: Write the proportion equation
397,431.26 : 548,595.96 = 236,285.48 : x - Step 2: Convert to fraction form
397,431.26/548,595.96 = 236,285.48/x - Step 3: Cross multiply
397,431.26x = 548,595.96 × 236,285.48 - Step 4: Simplify right side
397,431.26x = 129,625,259,734.66 - Step 5: Solve for x
x = 129,625,259,734.66/397,431.26 - Step 6: Final answer
x = 326,157.69
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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.