Finding the Fourth Proportional to 296,778.09, 445,163.25 and 72,137.88
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Solution
The fourth proportional to 296,778.09, 445,163.25 and 72,137.88 is: 108,205.88
Step by Step Solution
- Step 1: Write the proportion equation
296,778.09 : 445,163.25 = 72,137.88 : x - Step 2: Convert to fraction form
296,778.09/445,163.25 = 72,137.88/x - Step 3: Cross multiply
296,778.09x = 445,163.25 × 72,137.88 - Step 4: Simplify right side
296,778.09x = 32,113,133,108.91 - Step 5: Solve for x
x = 32,113,133,108.91/296,778.09 - Step 6: Final answer
x = 108,205.88
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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.