Finding the Third Proportional to 399 and 488
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Solution
The third proportional to 399 and 488 is: 596.85
Step by Step Solution
- Step 1: Write the proportion equation
399 : 488 = 488 : x - Step 2: Convert to fraction form
399/488 = 488/x - Step 3: Cross multiply
399x = 488 × 488 - Step 4: Simplify right side
399x = 238,144 - Step 5: Solve for x
x = 238,144/399 - Step 6: Final answer
x = 596.85
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These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.