Finding the Fourth Proportional to 216,493.28, 324,780.24 and 76,340.96
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Solution
The fourth proportional to 216,493.28, 324,780.24 and 76,340.96 is: 114,525.66
Step by Step Solution
- Step 1: Write the proportion equation
216,493.28 : 324,780.24 = 76,340.96 : x - Step 2: Convert to fraction form
216,493.28/324,780.24 = 76,340.96/x - Step 3: Cross multiply
216,493.28x = 324,780.24 × 76,340.96 - Step 4: Simplify right side
216,493.28x = 24,794,035,310.63 - Step 5: Solve for x
x = 24,794,035,310.63/216,493.28 - Step 6: Final answer
x = 114,525.66
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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.