Finding the Fourth Proportional to 371,879.92, 513,173.46 and 202,112.92
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Solution
The fourth proportional to 371,879.92, 513,173.46 and 202,112.92 is: 278,904.51
Step by Step Solution
- Step 1: Write the proportion equation
371,879.92 : 513,173.46 = 202,112.92 : x - Step 2: Convert to fraction form
371,879.92/513,173.46 = 202,112.92/x - Step 3: Cross multiply
371,879.92x = 513,173.46 × 202,112.92 - Step 4: Simplify right side
371,879.92x = 103,718,986,467.10 - Step 5: Solve for x
x = 103,718,986,467.10/371,879.92 - Step 6: Final answer
x = 278,904.51
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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.