Finding the Fourth Proportional to 194,912.80, 292,369.20 and 131,927.20
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Solution
The fourth proportional to 194,912.80, 292,369.20 and 131,927.20 is: 197,890.80
Step by Step Solution
- Step 1: Write the proportion equation
194,912.80 : 292,369.20 = 131,927.20 : x - Step 2: Convert to fraction form
194,912.80/292,369.20 = 131,927.20/x - Step 3: Cross multiply
194,912.80x = 292,369.20 × 131,927.20 - Step 4: Simplify right side
194,912.80x = 38,571,449,922.24 - Step 5: Solve for x
x = 38,571,449,922.24/194,912.80 - Step 6: Final answer
x = 197,890.80
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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.