Finding the Fourth Proportional to 306,878.75, 460,514.75 and 149,021.09
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Solution
The fourth proportional to 306,878.75, 460,514.75 and 149,021.09 is: 223,627.12
Step by Step Solution
- Step 1: Write the proportion equation
306,878.75 : 460,514.75 = 149,021.09 : x - Step 2: Convert to fraction form
306,878.75/460,514.75 = 149,021.09/x - Step 3: Cross multiply
306,878.75x = 460,514.75 × 149,021.09 - Step 4: Simplify right side
306,878.75x = 68,626,410,006.08 - Step 5: Solve for x
x = 68,626,410,006.08/306,878.75 - Step 6: Final answer
x = 223,627.12
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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.