Finding the Fourth Proportional to 219.28, 329.25 and 208.99
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Solution
The fourth proportional to 219.28, 329.25 and 208.99 is: 313.80
Step by Step Solution
- Step 1: Write the proportion equation
219.28 : 329.25 = 208.99 : x - Step 2: Convert to fraction form
219.28/329.25 = 208.99/x - Step 3: Cross multiply
219.28x = 329.25 × 208.99 - Step 4: Simplify right side
219.28x = 68,809.96 - Step 5: Solve for x
x = 68,809.96/219.28 - Step 6: Final answer
x = 313.80
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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.