Finding the Third Proportional to 392 and 425.50
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Solution
The third proportional to 392 and 425.50 is: 461.86
Step by Step Solution
- Step 1: Write the proportion equation
392 : 425.50 = 425.50 : x - Step 2: Convert to fraction form
392/425.50 = 425.50/x - Step 3: Cross multiply
392x = 425.50 × 425.50 - Step 4: Simplify right side
392x = 181,050.25 - Step 5: Solve for x
x = 181,050.25/392 - Step 6: Final answer
x = 461.86
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These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.