Finding the Fourth Proportional to 317.94, 476.99 and 180.99
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Solution
The fourth proportional to 317.94, 476.99 and 180.99 is: 271.53
Step by Step Solution
- Step 1: Write the proportion equation
317.94 : 476.99 = 180.99 : x - Step 2: Convert to fraction form
317.94/476.99 = 180.99/x - Step 3: Cross multiply
317.94x = 476.99 × 180.99 - Step 4: Simplify right side
317.94x = 86,329.52 - Step 5: Solve for x
x = 86,329.52/317.94 - Step 6: Final answer
x = 271.53
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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.