Finding the Fourth Proportional to 189,520.76, 284,280.50 and 77,175.99
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Solution
The fourth proportional to 189,520.76, 284,280.50 and 77,175.99 is: 115,763.72
Step by Step Solution
- Step 1: Write the proportion equation
189,520.76 : 284,280.50 = 77,175.99 : x - Step 2: Convert to fraction form
189,520.76/284,280.50 = 77,175.99/x - Step 3: Cross multiply
189,520.76x = 284,280.50 × 77,175.99 - Step 4: Simplify right side
189,520.76x = 21,939,629,218.14 - Step 5: Solve for x
x = 21,939,629,218.14/189,520.76 - Step 6: Final answer
x = 115,763.72
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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.