Finding the Third Proportional to 239 and 515.50
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Solution
The third proportional to 239 and 515.50 is: 1,111.88
Step by Step Solution
- Step 1: Write the proportion equation
239 : 515.50 = 515.50 : x - Step 2: Convert to fraction form
239/515.50 = 515.50/x - Step 3: Cross multiply
239x = 515.50 × 515.50 - Step 4: Simplify right side
239x = 265,740.25 - Step 5: Solve for x
x = 265,740.25/239 - Step 6: Final answer
x = 1,111.88
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.