Finding the Third Proportional to 307 and 654.50
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Solution
The third proportional to 307 and 654.50 is: 1,395.34
Step by Step Solution
- Step 1: Write the proportion equation
307 : 654.50 = 654.50 : x - Step 2: Convert to fraction form
307/654.50 = 654.50/x - Step 3: Cross multiply
307x = 654.50 × 654.50 - Step 4: Simplify right side
307x = 428,370.25 - Step 5: Solve for x
x = 428,370.25/307 - Step 6: Final answer
x = 1,395.34
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Why These Related Problems?
These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.