Finding the Fourth Proportional to 317.26, 474.63 and 282.62
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Solution
The fourth proportional to 317.26, 474.63 and 282.62 is: 422.81
Step by Step Solution
- Step 1: Write the proportion equation
317.26 : 474.63 = 282.62 : x - Step 2: Convert to fraction form
317.26/474.63 = 282.62/x - Step 3: Cross multiply
317.26x = 474.63 × 282.62 - Step 4: Simplify right side
317.26x = 134,139.93 - Step 5: Solve for x
x = 134,139.93/317.26 - Step 6: Final answer
x = 422.81
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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.