Finding the Fourth Proportional to 364.91, 547.36 and 121.43
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Solution
The fourth proportional to 364.91, 547.36 and 121.43 is: 182.15
Step by Step Solution
- Step 1: Write the proportion equation
364.91 : 547.36 = 121.43 : x - Step 2: Convert to fraction form
364.91/547.36 = 121.43/x - Step 3: Cross multiply
364.91x = 547.36 × 121.43 - Step 4: Simplify right side
364.91x = 66,466.99 - Step 5: Solve for x
x = 66,466.99/364.91 - Step 6: Final answer
x = 182.15
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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.