Finding the Fourth Proportional to 272,269.76, 408,424.16 and 72,589.12
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Solution
The fourth proportional to 272,269.76, 408,424.16 and 72,589.12 is: 108,888.88
Step by Step Solution
- Step 1: Write the proportion equation
272,269.76 : 408,424.16 = 72,589.12 : x - Step 2: Convert to fraction form
272,269.76/408,424.16 = 72,589.12/x - Step 3: Cross multiply
272,269.76x = 408,424.16 × 72,589.12 - Step 4: Simplify right side
272,269.76x = 29,647,150,361.14 - Step 5: Solve for x
x = 29,647,150,361.14/272,269.76 - Step 6: Final answer
x = 108,888.88
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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.