Finding the Third Proportional to 318.50 and 625
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Solution
The third proportional to 318.50 and 625 is: 1,226.45
Step by Step Solution
- Step 1: Write the proportion equation
318.50 : 625 = 625 : x - Step 2: Convert to fraction form
318.50/625 = 625/x - Step 3: Cross multiply
318.50x = 625 × 625 - Step 4: Simplify right side
318.50x = 390,625 - Step 5: Solve for x
x = 390,625/318.50 - Step 6: Final answer
x = 1,226.45
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These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.