Finding the Fourth Proportional to 317.13, 475.55 and 186.99
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Solution
The fourth proportional to 317.13, 475.55 and 186.99 is: 280.40
Step by Step Solution
- Step 1: Write the proportion equation
317.13 : 475.55 = 186.99 : x - Step 2: Convert to fraction form
317.13/475.55 = 186.99/x - Step 3: Cross multiply
317.13x = 475.55 × 186.99 - Step 4: Simplify right side
317.13x = 88,923.09 - Step 5: Solve for x
x = 88,923.09/317.13 - Step 6: Final answer
x = 280.40
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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.