Finding the Fourth Proportional to 189,640.08, 284,241.12 and 71,235.84
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Solution
The fourth proportional to 189,640.08, 284,241.12 and 71,235.84 is: 106,771.50
Step by Step Solution
- Step 1: Write the proportion equation
189,640.08 : 284,241.12 = 71,235.84 : x - Step 2: Convert to fraction form
189,640.08/284,241.12 = 71,235.84/x - Step 3: Cross multiply
189,640.08x = 284,241.12 × 71,235.84 - Step 4: Simplify right side
189,640.08x = 20,248,154,945.74 - Step 5: Solve for x
x = 20,248,154,945.74/189,640.08 - Step 6: Final answer
x = 106,771.50
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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.