Finding the Fourth Proportional to 410,991.75, 616,487.63 and 115,503.75
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Solution
The fourth proportional to 410,991.75, 616,487.63 and 115,503.75 is: 173,255.63
Step by Step Solution
- Step 1: Write the proportion equation
410,991.75 : 616,487.63 = 115,503.75 : x - Step 2: Convert to fraction form
410,991.75/616,487.63 = 115,503.75/x - Step 3: Cross multiply
410,991.75x = 616,487.63 × 115,503.75 - Step 4: Simplify right side
410,991.75x = 71,206,633,093.61 - Step 5: Solve for x
x = 71,206,633,093.61/410,991.75 - Step 6: Final answer
x = 173,255.63
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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.