Finding the Fourth Proportional to 189,541.99, 284,476.74 and 77,284.09
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Solution
The fourth proportional to 189,541.99, 284,476.74 and 77,284.09 is: 115,992.90
Step by Step Solution
- Step 1: Write the proportion equation
189,541.99 : 284,476.74 = 77,284.09 : x - Step 2: Convert to fraction form
189,541.99/284,476.74 = 77,284.09/x - Step 3: Cross multiply
189,541.99x = 284,476.74 × 77,284.09 - Step 4: Simplify right side
189,541.99x = 21,985,524,168.26 - Step 5: Solve for x
x = 21,985,524,168.26/189,541.99 - Step 6: Final answer
x = 115,992.90
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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.