Finding the Third Proportional to 51.50 and 139.50
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Solution
The third proportional to 51.50 and 139.50 is: 377.87
Step by Step Solution
- Step 1: Write the proportion equation
51.50 : 139.50 = 139.50 : x - Step 2: Convert to fraction form
51.50/139.50 = 139.50/x - Step 3: Cross multiply
51.50x = 139.50 × 139.50 - Step 4: Simplify right side
51.50x = 19,460.25 - Step 5: Solve for x
x = 19,460.25/51.50 - Step 6: Final answer
x = 377.87
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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.