Finding the Fourth Proportional to 280,174.70, 420,012.41 and 102,640.19
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Solution
The fourth proportional to 280,174.70, 420,012.41 and 102,640.19 is: 153,868.82
Step by Step Solution
- Step 1: Write the proportion equation
280,174.70 : 420,012.41 = 102,640.19 : x - Step 2: Convert to fraction form
280,174.70/420,012.41 = 102,640.19/x - Step 3: Cross multiply
280,174.70x = 420,012.41 × 102,640.19 - Step 4: Simplify right side
280,174.70x = 43,110,150,951.49 - Step 5: Solve for x
x = 43,110,150,951.49/280,174.70 - Step 6: Final answer
x = 153,868.82
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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.