Finding the Fourth Proportional to 194,785.20, 268,803.99 and 109,902.33
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Solution
The fourth proportional to 194,785.20, 268,803.99 and 109,902.33 is: 151,665.45
Step by Step Solution
- Step 1: Write the proportion equation
194,785.20 : 268,803.99 = 109,902.33 : x - Step 2: Convert to fraction form
194,785.20/268,803.99 = 109,902.33/x - Step 3: Cross multiply
194,785.20x = 268,803.99 × 109,902.33 - Step 4: Simplify right side
194,785.20x = 29,542,184,814.30 - Step 5: Solve for x
x = 29,542,184,814.30/194,785.20 - Step 6: Final answer
x = 151,665.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.