Finding the Fourth Proportional to 394,195.08, 543,989.04 and 212,906.94
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Solution
The fourth proportional to 394,195.08, 543,989.04 and 212,906.94 is: 293,811.49
Step by Step Solution
- Step 1: Write the proportion equation
394,195.08 : 543,989.04 = 212,906.94 : x - Step 2: Convert to fraction form
394,195.08/543,989.04 = 212,906.94/x - Step 3: Cross multiply
394,195.08x = 543,989.04 × 212,906.94 - Step 4: Simplify right side
394,195.08x = 115,819,041,899.94 - Step 5: Solve for x
x = 115,819,041,899.94/394,195.08 - Step 6: Final answer
x = 293,811.49
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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.