Finding the Fourth Proportional to 292.68, 438.89 and 170.99
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Solution
The fourth proportional to 292.68, 438.89 and 170.99 is: 256.40
Step by Step Solution
- Step 1: Write the proportion equation
292.68 : 438.89 = 170.99 : x - Step 2: Convert to fraction form
292.68/438.89 = 170.99/x - Step 3: Cross multiply
292.68x = 438.89 × 170.99 - Step 4: Simplify right side
292.68x = 75,042.75 - Step 5: Solve for x
x = 75,042.75/292.68 - Step 6: Final answer
x = 256.40
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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.