Finding the Fourth Proportional to 226.90, 313.05 and 201.70
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Solution
The fourth proportional to 226.90, 313.05 and 201.70 is: 278.28
Step by Step Solution
- Step 1: Write the proportion equation
226.90 : 313.05 = 201.70 : x - Step 2: Convert to fraction form
226.90/313.05 = 201.70/x - Step 3: Cross multiply
226.90x = 313.05 × 201.70 - Step 4: Simplify right side
226.90x = 63,142.19 - Step 5: Solve for x
x = 63,142.19/226.90 - Step 6: Final answer
x = 278.28
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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.