Finding the Fourth Proportional to 229.44, 315.99 and 217.71
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Solution
The fourth proportional to 229.44, 315.99 and 217.71 is: 299.84
Step by Step Solution
- Step 1: Write the proportion equation
229.44 : 315.99 = 217.71 : x - Step 2: Convert to fraction form
229.44/315.99 = 217.71/x - Step 3: Cross multiply
229.44x = 315.99 × 217.71 - Step 4: Simplify right side
229.44x = 68,794.18 - Step 5: Solve for x
x = 68,794.18/229.44 - Step 6: Final answer
x = 299.84
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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.