Finding the Fourth Proportional to 245,951.82, 368,616.90 and 131,815.99
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Solution
The fourth proportional to 245,951.82, 368,616.90 and 131,815.99 is: 197,557.40
Step by Step Solution
- Step 1: Write the proportion equation
245,951.82 : 368,616.90 = 131,815.99 : x - Step 2: Convert to fraction form
245,951.82/368,616.90 = 131,815.99/x - Step 3: Cross multiply
245,951.82x = 368,616.90 × 131,815.99 - Step 4: Simplify right side
245,951.82x = 48,589,601,604.23 - Step 5: Solve for x
x = 48,589,601,604.23/245,951.82 - Step 6: Final answer
x = 197,557.40
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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.