Finding the Fourth Proportional to 328.97, 493.50 and 123.53
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Solution
The fourth proportional to 328.97, 493.50 and 123.53 is: 185.31
Step by Step Solution
- Step 1: Write the proportion equation
328.97 : 493.50 = 123.53 : x - Step 2: Convert to fraction form
328.97/493.50 = 123.53/x - Step 3: Cross multiply
328.97x = 493.50 × 123.53 - Step 4: Simplify right side
328.97x = 60,959.59 - Step 5: Solve for x
x = 60,959.59/328.97 - Step 6: Final answer
x = 185.31
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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.