Finding the Fourth Proportional to 212,634.44, 318,952.37 and 145,872.21
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Solution
The fourth proportional to 212,634.44, 318,952.37 and 145,872.21 is: 218,808.80
Step by Step Solution
- Step 1: Write the proportion equation
212,634.44 : 318,952.37 = 145,872.21 : x - Step 2: Convert to fraction form
212,634.44/318,952.37 = 145,872.21/x - Step 3: Cross multiply
212,634.44x = 318,952.37 × 145,872.21 - Step 4: Simplify right side
212,634.44x = 46,526,287,096.64 - Step 5: Solve for x
x = 46,526,287,096.64/212,634.44 - Step 6: Final answer
x = 218,808.80
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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.