Finding the Fourth Proportional to 213,825.76, 320,771.44 and 155,104.80
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Solution
The fourth proportional to 213,825.76, 320,771.44 and 155,104.80 is: 232,680.99
Step by Step Solution
- Step 1: Write the proportion equation
213,825.76 : 320,771.44 = 155,104.80 : x - Step 2: Convert to fraction form
213,825.76/320,771.44 = 155,104.80/x - Step 3: Cross multiply
213,825.76x = 320,771.44 × 155,104.80 - Step 4: Simplify right side
213,825.76x = 49,753,190,046.91 - Step 5: Solve for x
x = 49,753,190,046.91/213,825.76 - Step 6: Final answer
x = 232,680.99
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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.