Finding the Fourth Proportional to 192,742.42, 288,957.80 and 80,508.62
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Solution
The fourth proportional to 192,742.42, 288,957.80 and 80,508.62 is: 120,697.84
Step by Step Solution
- Step 1: Write the proportion equation
192,742.42 : 288,957.80 = 80,508.62 : x - Step 2: Convert to fraction form
192,742.42/288,957.80 = 80,508.62/x - Step 3: Cross multiply
192,742.42x = 288,957.80 × 80,508.62 - Step 4: Simplify right side
192,742.42x = 23,263,593,716.24 - Step 5: Solve for x
x = 23,263,593,716.24/192,742.42 - Step 6: Final answer
x = 120,697.84
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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.