Finding the Third Proportional to 339 and 361
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Solution
The third proportional to 339 and 361 is: 384.43
Step by Step Solution
- Step 1: Write the proportion equation
339 : 361 = 361 : x - Step 2: Convert to fraction form
339/361 = 361/x - Step 3: Cross multiply
339x = 361 × 361 - Step 4: Simplify right side
339x = 130,321 - Step 5: Solve for x
x = 130,321/339 - Step 6: Final answer
x = 384.43
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These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.