Finding the Fourth Proportional to 311,843.37, 430,343.49 and 168,603.08
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Solution
The fourth proportional to 311,843.37, 430,343.49 and 168,603.08 is: 232,672.05
Step by Step Solution
- Step 1: Write the proportion equation
311,843.37 : 430,343.49 = 168,603.08 : x - Step 2: Convert to fraction form
311,843.37/430,343.49 = 168,603.08/x - Step 3: Cross multiply
311,843.37x = 430,343.49 × 168,603.08 - Step 4: Simplify right side
311,843.37x = 72,557,234,877.22 - Step 5: Solve for x
x = 72,557,234,877.22/311,843.37 - Step 6: Final answer
x = 232,672.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.