Finding the Fourth Proportional to 464.12, 639.68 and 323.99
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Solution
The fourth proportional to 464.12, 639.68 and 323.99 is: 446.54
Step by Step Solution
- Step 1: Write the proportion equation
464.12 : 639.68 = 323.99 : x - Step 2: Convert to fraction form
464.12/639.68 = 323.99/x - Step 3: Cross multiply
464.12x = 639.68 × 323.99 - Step 4: Simplify right side
464.12x = 207,245.10 - Step 5: Solve for x
x = 207,245.10/464.12 - Step 6: Final answer
x = 446.54
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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.