Finding the Fourth Proportional to 292.44, 438.63 and 170.70
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Solution
The fourth proportional to 292.44, 438.63 and 170.70 is: 256.03
Step by Step Solution
- Step 1: Write the proportion equation
292.44 : 438.63 = 170.70 : x - Step 2: Convert to fraction form
292.44/438.63 = 170.70/x - Step 3: Cross multiply
292.44x = 438.63 × 170.70 - Step 4: Simplify right side
292.44x = 74,874.14 - Step 5: Solve for x
x = 74,874.14/292.44 - Step 6: Final answer
x = 256.03
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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.