Finding the Fourth Proportional to 212,133.26, 318,286.20 and 136,316.82
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Solution
The fourth proportional to 212,133.26, 318,286.20 and 136,316.82 is: 204,530.69
Step by Step Solution
- Step 1: Write the proportion equation
212,133.26 : 318,286.20 = 136,316.82 : x - Step 2: Convert to fraction form
212,133.26/318,286.20 = 136,316.82/x - Step 3: Cross multiply
212,133.26x = 318,286.20 × 136,316.82 - Step 4: Simplify right side
212,133.26x = 43,387,762,633.88 - Step 5: Solve for x
x = 43,387,762,633.88/212,133.26 - Step 6: Final answer
x = 204,530.69
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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.