Finding the Third Proportional to 69 and 125.50
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Solution
The third proportional to 69 and 125.50 is: 228.26
Step by Step Solution
- Step 1: Write the proportion equation
69 : 125.50 = 125.50 : x - Step 2: Convert to fraction form
69/125.50 = 125.50/x - Step 3: Cross multiply
69x = 125.50 × 125.50 - Step 4: Simplify right side
69x = 15,750.25 - Step 5: Solve for x
x = 15,750.25/69 - Step 6: Final answer
x = 228.26
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Why These Related Problems?
These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.