Finding the Fourth Proportional to 329.45, 454.79 and 234.99
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Solution
The fourth proportional to 329.45, 454.79 and 234.99 is: 324.39
Step by Step Solution
- Step 1: Write the proportion equation
329.45 : 454.79 = 234.99 : x - Step 2: Convert to fraction form
329.45/454.79 = 234.99/x - Step 3: Cross multiply
329.45x = 454.79 × 234.99 - Step 4: Simplify right side
329.45x = 106,869.93 - Step 5: Solve for x
x = 106,869.93/329.45 - Step 6: Final answer
x = 324.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.