Finding the Fourth Proportional to 208,460.20, 287,676.84 and 122,396.80
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Solution
The fourth proportional to 208,460.20, 287,676.84 and 122,396.80 is: 168,908.62
Step by Step Solution
- Step 1: Write the proportion equation
208,460.20 : 287,676.84 = 122,396.80 : x - Step 2: Convert to fraction form
208,460.20/287,676.84 = 122,396.80/x - Step 3: Cross multiply
208,460.20x = 287,676.84 × 122,396.80 - Step 4: Simplify right side
208,460.20x = 35,210,724,650.11 - Step 5: Solve for x
x = 35,210,724,650.11/208,460.20 - Step 6: Final answer
x = 168,908.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.