Finding the Fourth Proportional to 215,906.34, 297,950.77 and 120,410.99
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Solution
The fourth proportional to 215,906.34, 297,950.77 and 120,410.99 is: 166,167.17
Step by Step Solution
- Step 1: Write the proportion equation
215,906.34 : 297,950.77 = 120,410.99 : x - Step 2: Convert to fraction form
215,906.34/297,950.77 = 120,410.99/x - Step 3: Cross multiply
215,906.34x = 297,950.77 × 120,410.99 - Step 4: Simplify right side
215,906.34x = 35,876,546,965.04 - Step 5: Solve for x
x = 35,876,546,965.04/215,906.34 - Step 6: Final answer
x = 166,167.17
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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.