Finding the Fourth Proportional to 309.76, 464.62 and 187.99
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Solution
The fourth proportional to 309.76, 464.62 and 187.99 is: 281.97
Step by Step Solution
- Step 1: Write the proportion equation
309.76 : 464.62 = 187.99 : x - Step 2: Convert to fraction form
309.76/464.62 = 187.99/x - Step 3: Cross multiply
309.76x = 464.62 × 187.99 - Step 4: Simplify right side
309.76x = 87,343.91 - Step 5: Solve for x
x = 87,343.91/309.76 - Step 6: Final answer
x = 281.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.