Finding the Fourth Proportional to 280,066.26, 420,161.84 and 80,371.08
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Solution
The fourth proportional to 280,066.26, 420,161.84 and 80,371.08 is: 120,574.54
Step by Step Solution
- Step 1: Write the proportion equation
280,066.26 : 420,161.84 = 80,371.08 : x - Step 2: Convert to fraction form
280,066.26/420,161.84 = 80,371.08/x - Step 3: Cross multiply
280,066.26x = 420,161.84 × 80,371.08 - Step 4: Simplify right side
280,066.26x = 33,768,860,855.59 - Step 5: Solve for x
x = 33,768,860,855.59/280,066.26 - Step 6: Final answer
x = 120,574.54
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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.