Finding the Fourth Proportional to 263,386.08, 395,121.24 and 85,879.44
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Solution
The fourth proportional to 263,386.08, 395,121.24 and 85,879.44 is: 128,832.89
Step by Step Solution
- Step 1: Write the proportion equation
263,386.08 : 395,121.24 = 85,879.44 : x - Step 2: Convert to fraction form
263,386.08/395,121.24 = 85,879.44/x - Step 3: Cross multiply
263,386.08x = 395,121.24 × 85,879.44 - Step 4: Simplify right side
263,386.08x = 33,932,790,823.31 - Step 5: Solve for x
x = 33,932,790,823.31/263,386.08 - Step 6: Final answer
x = 128,832.89
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1.5x scale
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.