Finding the Fourth Proportional to 227.10, 312.73 and 202.26
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Solution
The fourth proportional to 227.10, 312.73 and 202.26 is: 278.52
Step by Step Solution
- Step 1: Write the proportion equation
227.10 : 312.73 = 202.26 : x - Step 2: Convert to fraction form
227.10/312.73 = 202.26/x - Step 3: Cross multiply
227.10x = 312.73 × 202.26 - Step 4: Simplify right side
227.10x = 63,252.77 - Step 5: Solve for x
x = 63,252.77/227.10 - Step 6: Final answer
x = 278.52
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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.