Finding the Fourth Proportional to 218,138.88, 327,198.80 and 68,375.76
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Solution
The fourth proportional to 218,138.88, 327,198.80 and 68,375.76 is: 102,560.65
Step by Step Solution
- Step 1: Write the proportion equation
218,138.88 : 327,198.80 = 68,375.76 : x - Step 2: Convert to fraction form
218,138.88/327,198.80 = 68,375.76/x - Step 3: Cross multiply
218,138.88x = 327,198.80 × 68,375.76 - Step 4: Simplify right side
218,138.88x = 22,372,466,279.21 - Step 5: Solve for x
x = 22,372,466,279.21/218,138.88 - Step 6: Final answer
x = 102,560.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.