Finding the Fourth Proportional to 326,408.70, 489,606.57 and 214,793.94
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Solution
The fourth proportional to 326,408.70, 489,606.57 and 214,793.94 is: 322,186.65
Step by Step Solution
- Step 1: Write the proportion equation
326,408.70 : 489,606.57 = 214,793.94 : x - Step 2: Convert to fraction form
326,408.70/489,606.57 = 214,793.94/x - Step 3: Cross multiply
326,408.70x = 489,606.57 × 214,793.94 - Step 4: Simplify right side
326,408.70x = 105,164,524,220.19 - Step 5: Solve for x
x = 105,164,524,220.19/326,408.70 - Step 6: Final answer
x = 322,186.65
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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.