Finding the Fourth Proportional to 228,080.26, 342,138.63 and 78,260.26
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Solution
The fourth proportional to 228,080.26, 342,138.63 and 78,260.26 is: 117,396.65
Step by Step Solution
- Step 1: Write the proportion equation
228,080.26 : 342,138.63 = 78,260.26 : x - Step 2: Convert to fraction form
228,080.26/342,138.63 = 78,260.26/x - Step 3: Cross multiply
228,080.26x = 342,138.63 × 78,260.26 - Step 4: Simplify right side
228,080.26x = 26,775,858,139.84 - Step 5: Solve for x
x = 26,775,858,139.84/228,080.26 - Step 6: Final answer
x = 117,396.65
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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.