Finding the Fourth Proportional to 365,425.20, 548,137.80 and 207,961.20
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Solution
The fourth proportional to 365,425.20, 548,137.80 and 207,961.20 is: 311,941.80
Step by Step Solution
- Step 1: Write the proportion equation
365,425.20 : 548,137.80 = 207,961.20 : x - Step 2: Convert to fraction form
365,425.20/548,137.80 = 207,961.20/x - Step 3: Cross multiply
365,425.20x = 548,137.80 × 207,961.20 - Step 4: Simplify right side
365,425.20x = 113,991,394,653.36 - Step 5: Solve for x
x = 113,991,394,653.36/365,425.20 - Step 6: Final answer
x = 311,941.80
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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.