Finding the Fourth Proportional to 203,548.95, 305,324.21 and 85,137.23
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Solution
The fourth proportional to 203,548.95, 305,324.21 and 85,137.23 is: 127,706.17
Step by Step Solution
- Step 1: Write the proportion equation
203,548.95 : 305,324.21 = 85,137.23 : x - Step 2: Convert to fraction form
203,548.95/305,324.21 = 85,137.23/x - Step 3: Cross multiply
203,548.95x = 305,324.21 × 85,137.23 - Step 4: Simplify right side
203,548.95x = 25,994,456,510.59 - Step 5: Solve for x
x = 25,994,456,510.59/203,548.95 - Step 6: Final answer
x = 127,706.17
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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.