Finding the Fourth Proportional to 218,657.70, 327,986.55 and 218,657.70
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Solution
The fourth proportional to 218,657.70, 327,986.55 and 218,657.70 is: 327,986.55
Step by Step Solution
- Step 1: Write the proportion equation
218,657.70 : 327,986.55 = 218,657.70 : x - Step 2: Convert to fraction form
218,657.70/327,986.55 = 218,657.70/x - Step 3: Cross multiply
218,657.70x = 327,986.55 × 218,657.70 - Step 4: Simplify right side
218,657.70x = 71,716,784,653.94 - Step 5: Solve for x
x = 71,716,784,653.94/218,657.70 - Step 6: Final answer
x = 327,986.55
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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.