Finding the Fourth Proportional to 227.83, 341.78 and 90.99
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Solution
The fourth proportional to 227.83, 341.78 and 90.99 is: 136.50
Step by Step Solution
- Step 1: Write the proportion equation
227.83 : 341.78 = 90.99 : x - Step 2: Convert to fraction form
227.83/341.78 = 90.99/x - Step 3: Cross multiply
227.83x = 341.78 × 90.99 - Step 4: Simplify right side
227.83x = 31,098.79 - Step 5: Solve for x
x = 31,098.79/227.83 - Step 6: Final answer
x = 136.50
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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.