Finding the Fourth Proportional to 204,510.71, 306,906.17 and 71,390.99
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Solution
The fourth proportional to 204,510.71, 306,906.17 and 71,390.99 is: 107,135.39
Step by Step Solution
- Step 1: Write the proportion equation
204,510.71 : 306,906.17 = 71,390.99 : x - Step 2: Convert to fraction form
204,510.71/306,906.17 = 71,390.99/x - Step 3: Cross multiply
204,510.71x = 306,906.17 × 71,390.99 - Step 4: Simplify right side
204,510.71x = 21,910,333,421.92 - Step 5: Solve for x
x = 21,910,333,421.92/204,510.71 - Step 6: Final answer
x = 107,135.39
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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.