Finding the Third Proportional to 861.50 and 933.50
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Solution
The third proportional to 861.50 and 933.50 is: 1,011.52
Step by Step Solution
- Step 1: Write the proportion equation
861.50 : 933.50 = 933.50 : x - Step 2: Convert to fraction form
861.50/933.50 = 933.50/x - Step 3: Cross multiply
861.50x = 933.50 × 933.50 - Step 4: Simplify right side
861.50x = 871,422.25 - Step 5: Solve for x
x = 871,422.25/861.50 - Step 6: Final answer
x = 1,011.52
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Why These Related Problems?
These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.