Finding the Fourth Proportional to 397,682.40, 548,811.11 and 225,611.99
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Solution
The fourth proportional to 397,682.40, 548,811.11 and 225,611.99 is: 311,349.87
Step by Step Solution
- Step 1: Write the proportion equation
397,682.40 : 548,811.11 = 225,611.99 : x - Step 2: Convert to fraction form
397,682.40/548,811.11 = 225,611.99/x - Step 3: Cross multiply
397,682.40x = 548,811.11 × 225,611.99 - Step 4: Simplify right side
397,682.40x = 123,818,362,789.09 - Step 5: Solve for x
x = 123,818,362,789.09/397,682.40 - Step 6: Final answer
x = 311,349.87
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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.