Finding the Fourth Proportional to 388,235.43, 582,493.26 and 135,553.14
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Solution
The fourth proportional to 388,235.43, 582,493.26 and 135,553.14 is: 203,378.63
Step by Step Solution
- Step 1: Write the proportion equation
388,235.43 : 582,493.26 = 135,553.14 : x - Step 2: Convert to fraction form
388,235.43/582,493.26 = 135,553.14/x - Step 3: Cross multiply
388,235.43x = 582,493.26 × 135,553.14 - Step 4: Simplify right side
388,235.43x = 78,958,788,283.55 - Step 5: Solve for x
x = 78,958,788,283.55/388,235.43 - Step 6: Final answer
x = 203,378.63
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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.