Finding the Fourth Proportional to 189,487.92, 284,149.20 and 100,720.08
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Solution
The fourth proportional to 189,487.92, 284,149.20 and 100,720.08 is: 151,036.17
Step by Step Solution
- Step 1: Write the proportion equation
189,487.92 : 284,149.20 = 100,720.08 : x - Step 2: Convert to fraction form
189,487.92/284,149.20 = 100,720.08/x - Step 3: Cross multiply
189,487.92x = 284,149.20 × 100,720.08 - Step 4: Simplify right side
189,487.92x = 28,619,530,155.94 - Step 5: Solve for x
x = 28,619,530,155.94/189,487.92 - Step 6: Final answer
x = 151,036.17
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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.