Finding the Third Proportional to 76,909.50 and 170,403.75
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Solution
The third proportional to 76,909.50 and 170,403.75 is: 377,553.33
Step by Step Solution
- Step 1: Write the proportion equation
76,909.50 : 170,403.75 = 170,403.75 : x - Step 2: Convert to fraction form
76,909.50/170,403.75 = 170,403.75/x - Step 3: Cross multiply
76,909.50x = 170,403.75 × 170,403.75 - Step 4: Simplify right side
76,909.50x = 29,037,438,014.06 - Step 5: Solve for x
x = 29,037,438,014.06/76,909.50 - Step 6: Final answer
x = 377,553.33
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Why These Related Problems?
These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.