Finding the Fourth Proportional to 263,629.13, 395,511.12 and 76,640.63
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Solution
The fourth proportional to 263,629.13, 395,511.12 and 76,640.63 is: 114,980.54
Step by Step Solution
- Step 1: Write the proportion equation
263,629.13 : 395,511.12 = 76,640.63 : x - Step 2: Convert to fraction form
263,629.13/395,511.12 = 76,640.63/x - Step 3: Cross multiply
263,629.13x = 395,511.12 × 76,640.63 - Step 4: Simplify right side
263,629.13x = 30,312,219,431.25 - Step 5: Solve for x
x = 30,312,219,431.25/263,629.13 - Step 6: Final answer
x = 114,980.54
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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.