Finding the Fourth Proportional to 218,385.21, 327,579.64 and 68,622.18
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Solution
The fourth proportional to 218,385.21, 327,579.64 and 68,622.18 is: 102,933.84
Step by Step Solution
- Step 1: Write the proportion equation
218,385.21 : 327,579.64 = 68,622.18 : x - Step 2: Convert to fraction form
218,385.21/327,579.64 = 68,622.18/x - Step 3: Cross multiply
218,385.21x = 327,579.64 × 68,622.18 - Step 4: Simplify right side
218,385.21x = 22,479,228,677.30 - Step 5: Solve for x
x = 22,479,228,677.30/218,385.21 - Step 6: Final answer
x = 102,933.84
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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.