Finding the Fourth Proportional to 274,138.30, 411,207.45 and 263,640.70
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Solution
The fourth proportional to 274,138.30, 411,207.45 and 263,640.70 is: 395,461.05
Step by Step Solution
- Step 1: Write the proportion equation
274,138.30 : 411,207.45 = 263,640.70 : x - Step 2: Convert to fraction form
274,138.30/411,207.45 = 263,640.70/x - Step 3: Cross multiply
274,138.30x = 411,207.45 × 263,640.70 - Step 4: Simplify right side
274,138.30x = 108,411,019,963.22 - Step 5: Solve for x
x = 108,411,019,963.22/274,138.30 - Step 6: Final answer
x = 395,461.05
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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.