Finding the Fourth Proportional to 464.33, 640.91 and 306.99
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Solution
The fourth proportional to 464.33, 640.91 and 306.99 is: 423.73
Step by Step Solution
- Step 1: Write the proportion equation
464.33 : 640.91 = 306.99 : x - Step 2: Convert to fraction form
464.33/640.91 = 306.99/x - Step 3: Cross multiply
464.33x = 640.91 × 306.99 - Step 4: Simplify right side
464.33x = 196,753.73 - Step 5: Solve for x
x = 196,753.73/464.33 - Step 6: Final answer
x = 423.73
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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.