Finding the Fourth Proportional to 280,175.33, 386,640.09 and 159,316.62
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Solution
The fourth proportional to 280,175.33, 386,640.09 and 159,316.62 is: 219,855.88
Step by Step Solution
- Step 1: Write the proportion equation
280,175.33 : 386,640.09 = 159,316.62 : x - Step 2: Convert to fraction form
280,175.33/386,640.09 = 159,316.62/x - Step 3: Cross multiply
280,175.33x = 386,640.09 × 159,316.62 - Step 4: Simplify right side
280,175.33x = 61,598,192,295.30 - Step 5: Solve for x
x = 61,598,192,295.30/280,175.33 - Step 6: Final answer
x = 219,855.88
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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.