Finding the Fourth Proportional to 355,302.15, 490,323.38 and 194,163.99
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Solution
The fourth proportional to 355,302.15, 490,323.38 and 194,163.99 is: 267,949.81
Step by Step Solution
- Step 1: Write the proportion equation
355,302.15 : 490,323.38 = 194,163.99 : x - Step 2: Convert to fraction form
355,302.15/490,323.38 = 194,163.99/x - Step 3: Cross multiply
355,302.15x = 490,323.38 × 194,163.99 - Step 4: Simplify right side
355,302.15x = 95,203,143,851.09 - Step 5: Solve for x
x = 95,203,143,851.09/355,302.15 - Step 6: Final answer
x = 267,949.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.