Finding the Fourth Proportional to 324,121.65, 486,163.99 and 99,481.74
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Solution
The fourth proportional to 324,121.65, 486,163.99 and 99,481.74 is: 149,216.94
Step by Step Solution
- Step 1: Write the proportion equation
324,121.65 : 486,163.99 = 99,481.74 : x - Step 2: Convert to fraction form
324,121.65/486,163.99 = 99,481.74/x - Step 3: Cross multiply
324,121.65x = 486,163.99 × 99,481.74 - Step 4: Simplify right side
324,121.65x = 48,364,439,650.54 - Step 5: Solve for x
x = 48,364,439,650.54/324,121.65 - Step 6: Final answer
x = 149,216.94
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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.