Finding the Fourth Proportional to 212,481.06, 318,604.88 and 145,937.94
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Solution
The fourth proportional to 212,481.06, 318,604.88 and 145,937.94 is: 218,826.75
Step by Step Solution
- Step 1: Write the proportion equation
212,481.06 : 318,604.88 = 145,937.94 : x - Step 2: Convert to fraction form
212,481.06/318,604.88 = 145,937.94/x - Step 3: Cross multiply
212,481.06x = 318,604.88 × 145,937.94 - Step 4: Simplify right side
212,481.06x = 46,496,539,861.15 - Step 5: Solve for x
x = 46,496,539,861.15/212,481.06 - Step 6: Final answer
x = 218,826.75
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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.