Finding the Fourth Proportional to 287,170.92, 396,235.80 and 173,971.80
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Solution
The fourth proportional to 287,170.92, 396,235.80 and 173,971.80 is: 240,044.69
Step by Step Solution
- Step 1: Write the proportion equation
287,170.92 : 396,235.80 = 173,971.80 : x - Step 2: Convert to fraction form
287,170.92/396,235.80 = 173,971.80/x - Step 3: Cross multiply
287,170.92x = 396,235.80 × 173,971.80 - Step 4: Simplify right side
287,170.92x = 68,933,855,350.44 - Step 5: Solve for x
x = 68,933,855,350.44/287,170.92 - Step 6: Final answer
x = 240,044.69
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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.