Finding the Fourth Proportional to 219.43, 329.15 and 133.99
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Solution
The fourth proportional to 219.43, 329.15 and 133.99 is: 200.99
Step by Step Solution
- Step 1: Write the proportion equation
219.43 : 329.15 = 133.99 : x - Step 2: Convert to fraction form
219.43/329.15 = 133.99/x - Step 3: Cross multiply
219.43x = 329.15 × 133.99 - Step 4: Simplify right side
219.43x = 44,102.81 - Step 5: Solve for x
x = 44,102.81/219.43 - Step 6: Final answer
x = 200.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.