Finding the Fourth Proportional to 212,912.70, 319,369.05 and 202,544.70
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Solution
The fourth proportional to 212,912.70, 319,369.05 and 202,544.70 is: 303,817.05
Step by Step Solution
- Step 1: Write the proportion equation
212,912.70 : 319,369.05 = 202,544.70 : x - Step 2: Convert to fraction form
212,912.70/319,369.05 = 202,544.70/x - Step 3: Cross multiply
212,912.70x = 319,369.05 × 202,544.70 - Step 4: Simplify right side
212,912.70x = 64,686,508,421.54 - Step 5: Solve for x
x = 64,686,508,421.54/212,912.70 - Step 6: Final answer
x = 303,817.05
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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.