Finding the Fourth Proportional to 248,620.36, 372,939.78 and 80,143.12
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Solution
The fourth proportional to 248,620.36, 372,939.78 and 80,143.12 is: 120,217.66
Step by Step Solution
- Step 1: Write the proportion equation
248,620.36 : 372,939.78 = 80,143.12 : x - Step 2: Convert to fraction form
248,620.36/372,939.78 = 80,143.12/x - Step 3: Cross multiply
248,620.36x = 372,939.78 × 80,143.12 - Step 4: Simplify right side
248,620.36x = 29,888,557,541.31 - Step 5: Solve for x
x = 29,888,557,541.31/248,620.36 - Step 6: Final answer
x = 120,217.66
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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.