Finding the Fourth Proportional to 275,800.75, 413,724.92 and 76,121.14
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Solution
The fourth proportional to 275,800.75, 413,724.92 and 76,121.14 is: 114,188.28
Step by Step Solution
- Step 1: Write the proportion equation
275,800.75 : 413,724.92 = 76,121.14 : x - Step 2: Convert to fraction form
275,800.75/413,724.92 = 76,121.14/x - Step 3: Cross multiply
275,800.75x = 413,724.92 × 76,121.14 - Step 4: Simplify right side
275,800.75x = 31,493,212,556.81 - Step 5: Solve for x
x = 31,493,212,556.81/275,800.75 - Step 6: Final answer
x = 114,188.28
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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.