Finding the Fourth Proportional to 355,297.60, 490,289.79 and 194,120.56
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Solution
The fourth proportional to 355,297.60, 490,289.79 and 194,120.56 is: 267,874.95
Step by Step Solution
- Step 1: Write the proportion equation
355,297.60 : 490,289.79 = 194,120.56 : x - Step 2: Convert to fraction form
355,297.60/490,289.79 = 194,120.56/x - Step 3: Cross multiply
355,297.60x = 490,289.79 × 194,120.56 - Step 4: Simplify right side
355,297.60x = 95,175,328,597.08 - Step 5: Solve for x
x = 95,175,328,597.08/355,297.60 - Step 6: Final answer
x = 267,874.95
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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.