Finding the Fourth Proportional to 339,163.40, 468,047.30 and 211,912.80
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Solution
The fourth proportional to 339,163.40, 468,047.30 and 211,912.80 is: 292,440.79
Step by Step Solution
- Step 1: Write the proportion equation
339,163.40 : 468,047.30 = 211,912.80 : x - Step 2: Convert to fraction form
339,163.40/468,047.30 = 211,912.80/x - Step 3: Cross multiply
339,163.40x = 468,047.30 × 211,912.80 - Step 4: Simplify right side
339,163.40x = 99,185,213,875.44 - Step 5: Solve for x
x = 99,185,213,875.44/339,163.40 - Step 6: Final answer
x = 292,440.79
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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.