Finding the Fourth Proportional to 397,638.57, 548,736.96 and 236,490.08
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Solution
The fourth proportional to 397,638.57, 548,736.96 and 236,490.08 is: 326,353.77
Step by Step Solution
- Step 1: Write the proportion equation
397,638.57 : 548,736.96 = 236,490.08 : x - Step 2: Convert to fraction form
397,638.57/548,736.96 = 236,490.08/x - Step 3: Cross multiply
397,638.57x = 548,736.96 × 236,490.08 - Step 4: Simplify right side
397,638.57x = 129,770,844,825.67 - Step 5: Solve for x
x = 129,770,844,825.67/397,638.57 - Step 6: Final answer
x = 326,353.77
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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.