Finding the Fourth Proportional to 464.99, 641.94 and 317.84
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Solution
The fourth proportional to 464.99, 641.94 and 317.84 is: 438.79
Step by Step Solution
- Step 1: Write the proportion equation
464.99 : 641.94 = 317.84 : x - Step 2: Convert to fraction form
464.99/641.94 = 317.84/x - Step 3: Cross multiply
464.99x = 641.94 × 317.84 - Step 4: Simplify right side
464.99x = 204,034.21 - Step 5: Solve for x
x = 204,034.21/464.99 - Step 6: Final answer
x = 438.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.