Finding the Fourth Proportional to 331,622.70, 457,986.68 and 228,524.95
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Solution
The fourth proportional to 331,622.70, 457,986.68 and 228,524.95 is: 315,603.80
Step by Step Solution
- Step 1: Write the proportion equation
331,622.70 : 457,986.68 = 228,524.95 : x - Step 2: Convert to fraction form
331,622.70/457,986.68 = 228,524.95/x - Step 3: Cross multiply
331,622.70x = 457,986.68 × 228,524.95 - Step 4: Simplify right side
331,622.70x = 104,661,383,147.67 - Step 5: Solve for x
x = 104,661,383,147.67/331,622.70 - Step 6: Final answer
x = 315,603.80
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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.