Finding the Fourth Proportional to 286.89, 429.74 and 170.99
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Solution
The fourth proportional to 286.89, 429.74 and 170.99 is: 256.13
Step by Step Solution
- Step 1: Write the proportion equation
286.89 : 429.74 = 170.99 : x - Step 2: Convert to fraction form
286.89/429.74 = 170.99/x - Step 3: Cross multiply
286.89x = 429.74 × 170.99 - Step 4: Simplify right side
286.89x = 73,481.24 - Step 5: Solve for x
x = 73,481.24/286.89 - Step 6: Final answer
x = 256.13
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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.