Finding the Fourth Proportional to 278,990.73, 418,240.36 and 110,629.40
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Solution
The fourth proportional to 278,990.73, 418,240.36 and 110,629.40 is: 165,846.65
Step by Step Solution
- Step 1: Write the proportion equation
278,990.73 : 418,240.36 = 110,629.40 : x - Step 2: Convert to fraction form
278,990.73/418,240.36 = 110,629.40/x - Step 3: Cross multiply
278,990.73x = 418,240.36 × 110,629.40 - Step 4: Simplify right side
278,990.73x = 46,269,678,129.67 - Step 5: Solve for x
x = 46,269,678,129.67/278,990.73 - Step 6: Final answer
x = 165,846.65
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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.