Finding the Fourth Proportional to 317.28, 476.01 and 163.26
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Solution
The fourth proportional to 317.28, 476.01 and 163.26 is: 244.94
Step by Step Solution
- Step 1: Write the proportion equation
317.28 : 476.01 = 163.26 : x - Step 2: Convert to fraction form
317.28/476.01 = 163.26/x - Step 3: Cross multiply
317.28x = 476.01 × 163.26 - Step 4: Simplify right side
317.28x = 77,713.39 - Step 5: Solve for x
x = 77,713.39/317.28 - Step 6: Final answer
x = 244.94
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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.