Finding the Fourth Proportional to 317.62, 476.44 and 144.26
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Solution
The fourth proportional to 317.62, 476.44 and 144.26 is: 216.39
Step by Step Solution
- Step 1: Write the proportion equation
317.62 : 476.44 = 144.26 : x - Step 2: Convert to fraction form
317.62/476.44 = 144.26/x - Step 3: Cross multiply
317.62x = 476.44 × 144.26 - Step 4: Simplify right side
317.62x = 68,731.23 - Step 5: Solve for x
x = 68,731.23/317.62 - Step 6: Final answer
x = 216.39
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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.