Finding the Fourth Proportional to 355,128.75, 490,092.30 and 204,225.75
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Solution
The fourth proportional to 355,128.75, 490,092.30 and 204,225.75 is: 281,839.95
Step by Step Solution
- Step 1: Write the proportion equation
355,128.75 : 490,092.30 = 204,225.75 : x - Step 2: Convert to fraction form
355,128.75/490,092.30 = 204,225.75/x - Step 3: Cross multiply
355,128.75x = 490,092.30 × 204,225.75 - Step 4: Simplify right side
355,128.75x = 100,089,467,536.73 - Step 5: Solve for x
x = 100,089,467,536.73/355,128.75 - Step 6: Final answer
x = 281,839.95
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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.