Finding the Fourth Proportional to 512,795.40, 769,193.64 and 133,715.80
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Solution
The fourth proportional to 512,795.40, 769,193.64 and 133,715.80 is: 200,573.84
Step by Step Solution
- Step 1: Write the proportion equation
512,795.40 : 769,193.64 = 133,715.80 : x - Step 2: Convert to fraction form
512,795.40/769,193.64 = 133,715.80/x - Step 3: Cross multiply
512,795.40x = 769,193.64 × 133,715.80 - Step 4: Simplify right side
512,795.40x = 102,853,342,927.51 - Step 5: Solve for x
x = 102,853,342,927.51/512,795.40 - Step 6: Final answer
x = 200,573.84
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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.