Finding the Third Proportional to 485 and 546.50
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Solution
The third proportional to 485 and 546.50 is: 615.80
Step by Step Solution
- Step 1: Write the proportion equation
485 : 546.50 = 546.50 : x - Step 2: Convert to fraction form
485/546.50 = 546.50/x - Step 3: Cross multiply
485x = 546.50 × 546.50 - Step 4: Simplify right side
485x = 298,662.25 - Step 5: Solve for x
x = 298,662.25/485 - Step 6: Final answer
x = 615.80
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These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.