Finding the Fourth Proportional to 215,734.42, 297,707.60 and 123,850.99
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Solution
The fourth proportional to 215,734.42, 297,707.60 and 123,850.99 is: 170,910.98
Step by Step Solution
- Step 1: Write the proportion equation
215,734.42 : 297,707.60 = 123,850.99 : x - Step 2: Convert to fraction form
215,734.42/297,707.60 = 123,850.99/x - Step 3: Cross multiply
215,734.42x = 297,707.60 × 123,850.99 - Step 4: Simplify right side
215,734.42x = 36,871,381,672.29 - Step 5: Solve for x
x = 36,871,381,672.29/215,734.42 - Step 6: Final answer
x = 170,910.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.