Finding the Fourth Proportional to 319,170.07, 478,771.51 and 82,514.80
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Solution
The fourth proportional to 319,170.07, 478,771.51 and 82,514.80 is: 123,776.44
Step by Step Solution
- Step 1: Write the proportion equation
319,170.07 : 478,771.51 = 82,514.80 : x - Step 2: Convert to fraction form
319,170.07/478,771.51 = 82,514.80/x - Step 3: Cross multiply
319,170.07x = 478,771.51 × 82,514.80 - Step 4: Simplify right side
319,170.07x = 39,505,735,940.24 - Step 5: Solve for x
x = 39,505,735,940.24/319,170.07 - Step 6: Final answer
x = 123,776.44
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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.