Finding the Third Proportional to 189 and 511.50
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Solution
The third proportional to 189 and 511.50 is: 1,384.30
Step by Step Solution
- Step 1: Write the proportion equation
189 : 511.50 = 511.50 : x - Step 2: Convert to fraction form
189/511.50 = 511.50/x - Step 3: Cross multiply
189x = 511.50 × 511.50 - Step 4: Simplify right side
189x = 261,632.25 - Step 5: Solve for x
x = 261,632.25/189 - Step 6: Final answer
x = 1,384.30
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Why These Related Problems?
These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.