Finding the Fourth Proportional to 317.24, 475.80 and 122.26
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Solution
The fourth proportional to 317.24, 475.80 and 122.26 is: 183.37
Step by Step Solution
- Step 1: Write the proportion equation
317.24 : 475.80 = 122.26 : x - Step 2: Convert to fraction form
317.24/475.80 = 122.26/x - Step 3: Cross multiply
317.24x = 475.80 × 122.26 - Step 4: Simplify right side
317.24x = 58,171.31 - Step 5: Solve for x
x = 58,171.31/317.24 - Step 6: Final answer
x = 183.37
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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.