Finding the Fourth Proportional to 256,603.91, 354,107.10 and 141,879.53
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Solution
The fourth proportional to 256,603.91, 354,107.10 and 141,879.53 is: 195,790.27
Step by Step Solution
- Step 1: Write the proportion equation
256,603.91 : 354,107.10 = 141,879.53 : x - Step 2: Convert to fraction form
256,603.91/354,107.10 = 141,879.53/x - Step 3: Cross multiply
256,603.91x = 354,107.10 × 141,879.53 - Step 4: Simplify right side
256,603.91x = 50,240,548,917.66 - Step 5: Solve for x
x = 50,240,548,917.66/256,603.91 - Step 6: Final answer
x = 195,790.27
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1.5x scale
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.