Finding the Fourth Proportional to 218,056.14, 327,211.11 and 91,687.23
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Solution
The fourth proportional to 218,056.14, 327,211.11 and 91,687.23 is: 137,584.20
Step by Step Solution
- Step 1: Write the proportion equation
218,056.14 : 327,211.11 = 91,687.23 : x - Step 2: Convert to fraction form
218,056.14/327,211.11 = 91,687.23/x - Step 3: Cross multiply
218,056.14x = 327,211.11 × 91,687.23 - Step 4: Simplify right side
218,056.14x = 30,001,080,301.13 - Step 5: Solve for x
x = 30,001,080,301.13/218,056.14 - Step 6: Final answer
x = 137,584.20
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1.5x scale
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.