Finding the Fourth Proportional to 280,078.44, 420,115.50 and 69,714.96
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Solution
The fourth proportional to 280,078.44, 420,115.50 and 69,714.96 is: 104,571.90
Step by Step Solution
- Step 1: Write the proportion equation
280,078.44 : 420,115.50 = 69,714.96 : x - Step 2: Convert to fraction form
280,078.44/420,115.50 = 69,714.96/x - Step 3: Cross multiply
280,078.44x = 420,115.50 × 69,714.96 - Step 4: Simplify right side
280,078.44x = 29,288,335,277.88 - Step 5: Solve for x
x = 29,288,335,277.88/280,078.44 - Step 6: Final answer
x = 104,571.90
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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.