Finding the Fourth Proportional to 324,107.85, 486,161.78 and 87,450.53
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Solution
The fourth proportional to 324,107.85, 486,161.78 and 87,450.53 is: 131,175.79
Step by Step Solution
- Step 1: Write the proportion equation
324,107.85 : 486,161.78 = 87,450.53 : x - Step 2: Convert to fraction form
324,107.85/486,161.78 = 87,450.53/x - Step 3: Cross multiply
324,107.85x = 486,161.78 × 87,450.53 - Step 4: Simplify right side
324,107.85x = 42,515,102,458.68 - Step 5: Solve for x
x = 42,515,102,458.68/324,107.85 - Step 6: Final answer
x = 131,175.79
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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.