Finding the Third Proportional to 401 and 485.50
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Solution
The third proportional to 401 and 485.50 is: 587.81
Step by Step Solution
- Step 1: Write the proportion equation
401 : 485.50 = 485.50 : x - Step 2: Convert to fraction form
401/485.50 = 485.50/x - Step 3: Cross multiply
401x = 485.50 × 485.50 - Step 4: Simplify right side
401x = 235,710.25 - Step 5: Solve for x
x = 235,710.25/401 - Step 6: Final answer
x = 587.81
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.