Finding the Fourth Proportional to 189,574.83, 284,361.39 and 77,229.99
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Solution
The fourth proportional to 189,574.83, 284,361.39 and 77,229.99 is: 115,844.64
Step by Step Solution
- Step 1: Write the proportion equation
189,574.83 : 284,361.39 = 77,229.99 : x - Step 2: Convert to fraction form
189,574.83/284,361.39 = 77,229.99/x - Step 3: Cross multiply
189,574.83x = 284,361.39 × 77,229.99 - Step 4: Simplify right side
189,574.83x = 21,961,227,306.09 - Step 5: Solve for x
x = 21,961,227,306.09/189,574.83 - Step 6: Final answer
x = 115,844.64
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1.5x scale
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.