Finding the Fourth Proportional to 192,379.36, 288,672.20 and 80,137.12
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Solution
The fourth proportional to 192,379.36, 288,672.20 and 80,137.12 is: 120,248.65
Step by Step Solution
- Step 1: Write the proportion equation
192,379.36 : 288,672.20 = 80,137.12 : x - Step 2: Convert to fraction form
192,379.36/288,672.20 = 80,137.12/x - Step 3: Cross multiply
192,379.36x = 288,672.20 × 80,137.12 - Step 4: Simplify right side
192,379.36x = 23,133,358,732.06 - Step 5: Solve for x
x = 23,133,358,732.06/192,379.36 - Step 6: Final answer
x = 120,248.65
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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.