Finding the Fourth Proportional to 216,447.75, 324,676.49 and 74,292.75
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Solution
The fourth proportional to 216,447.75, 324,676.49 and 74,292.75 is: 111,440.79
Step by Step Solution
- Step 1: Write the proportion equation
216,447.75 : 324,676.49 = 74,292.75 : x - Step 2: Convert to fraction form
216,447.75/324,676.49 = 74,292.75/x - Step 3: Cross multiply
216,447.75x = 324,676.49 × 74,292.75 - Step 4: Simplify right side
216,447.75x = 24,121,108,930.98 - Step 5: Solve for x
x = 24,121,108,930.98/216,447.75 - Step 6: Final answer
x = 111,440.79
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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.