Finding the Third Proportional to 307.50 and 610.50
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Solution
The third proportional to 307.50 and 610.50 is: 1,212.07
Step by Step Solution
- Step 1: Write the proportion equation
307.50 : 610.50 = 610.50 : x - Step 2: Convert to fraction form
307.50/610.50 = 610.50/x - Step 3: Cross multiply
307.50x = 610.50 × 610.50 - Step 4: Simplify right side
307.50x = 372,710.25 - Step 5: Solve for x
x = 372,710.25/307.50 - Step 6: Final answer
x = 1,212.07
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Why These Related Problems?
These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.