Finding the Fourth Proportional to 381.17, 571.75 and 107.26
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Solution
The fourth proportional to 381.17, 571.75 and 107.26 is: 160.89
Step by Step Solution
- Step 1: Write the proportion equation
381.17 : 571.75 = 107.26 : x - Step 2: Convert to fraction form
381.17/571.75 = 107.26/x - Step 3: Cross multiply
381.17x = 571.75 × 107.26 - Step 4: Simplify right side
381.17x = 61,325.91 - Step 5: Solve for x
x = 61,325.91/381.17 - Step 6: Final answer
x = 160.89
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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.