Finding the Fourth Proportional to 397,191.36, 548,125.07 and 215,902.97
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Solution
The fourth proportional to 397,191.36, 548,125.07 and 215,902.97 is: 297,946.63
Step by Step Solution
- Step 1: Write the proportion equation
397,191.36 : 548,125.07 = 215,902.97 : x - Step 2: Convert to fraction form
397,191.36/548,125.07 = 215,902.97/x - Step 3: Cross multiply
397,191.36x = 548,125.07 × 215,902.97 - Step 4: Simplify right side
397,191.36x = 118,341,826,724.32 - Step 5: Solve for x
x = 118,341,826,724.32/397,191.36 - Step 6: Final answer
x = 297,946.63
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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.