Finding the Fourth Proportional to 189,671.40, 284,548.20 and 100,912.08
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Solution
The fourth proportional to 189,671.40, 284,548.20 and 100,912.08 is: 151,389.99
Step by Step Solution
- Step 1: Write the proportion equation
189,671.40 : 284,548.20 = 100,912.08 : x - Step 2: Convert to fraction form
189,671.40/284,548.20 = 100,912.08/x - Step 3: Cross multiply
189,671.40x = 284,548.20 × 100,912.08 - Step 4: Simplify right side
189,671.40x = 28,714,350,722.26 - Step 5: Solve for x
x = 28,714,350,722.26/189,671.40 - Step 6: Final answer
x = 151,389.99
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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.