Finding the Fourth Proportional to 317.75, 476.99 and 180.96
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Solution
The fourth proportional to 317.75, 476.99 and 180.96 is: 271.65
Step by Step Solution
- Step 1: Write the proportion equation
317.75 : 476.99 = 180.96 : x - Step 2: Convert to fraction form
317.75/476.99 = 180.96/x - Step 3: Cross multiply
317.75x = 476.99 × 180.96 - Step 4: Simplify right side
317.75x = 86,315.21 - Step 5: Solve for x
x = 86,315.21/317.75 - Step 6: Final answer
x = 271.65
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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.