Finding the Fourth Proportional to 219.36, 329.09 and 97.62
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Solution
The fourth proportional to 219.36, 329.09 and 97.62 is: 146.45
Step by Step Solution
- Step 1: Write the proportion equation
219.36 : 329.09 = 97.62 : x - Step 2: Convert to fraction form
219.36/329.09 = 97.62/x - Step 3: Cross multiply
219.36x = 329.09 × 97.62 - Step 4: Simplify right side
219.36x = 32,125.28 - Step 5: Solve for x
x = 32,125.28/219.36 - Step 6: Final answer
x = 146.45
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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.