Finding the Fourth Proportional to 285,553.11, 428,236.24 and 133,703.18
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Solution
The fourth proportional to 285,553.11, 428,236.24 and 133,703.18 is: 200,511.02
Step by Step Solution
- Step 1: Write the proportion equation
285,553.11 : 428,236.24 = 133,703.18 : x - Step 2: Convert to fraction form
285,553.11/428,236.24 = 133,703.18/x - Step 3: Cross multiply
285,553.11x = 428,236.24 × 133,703.18 - Step 4: Simplify right side
285,553.11x = 57,256,546,410.73 - Step 5: Solve for x
x = 57,256,546,410.73/285,553.11 - Step 6: Final answer
x = 200,511.02
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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.