Finding the Fourth Proportional to 218,107.21, 327,160.89 and 68,359.12
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Solution
The fourth proportional to 218,107.21, 327,160.89 and 68,359.12 is: 102,538.70
Step by Step Solution
- Step 1: Write the proportion equation
218,107.21 : 327,160.89 = 68,359.12 : x - Step 2: Convert to fraction form
218,107.21/327,160.89 = 68,359.12/x - Step 3: Cross multiply
218,107.21x = 327,160.89 × 68,359.12 - Step 4: Simplify right side
218,107.21x = 22,364,430,538.82 - Step 5: Solve for x
x = 22,364,430,538.82/218,107.21 - Step 6: Final answer
x = 102,538.70
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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.