Finding the Fourth Proportional to 320.98, 441.84 and 284.08
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Solution
The fourth proportional to 320.98, 441.84 and 284.08 is: 391.05
Step by Step Solution
- Step 1: Write the proportion equation
320.98 : 441.84 = 284.08 : x - Step 2: Convert to fraction form
320.98/441.84 = 284.08/x - Step 3: Cross multiply
320.98x = 441.84 × 284.08 - Step 4: Simplify right side
320.98x = 125,517.91 - Step 5: Solve for x
x = 125,517.91/320.98 - Step 6: Final answer
x = 391.05
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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.