Finding the Fourth Proportional to 290,690.29, 401,149.11 and 169,849.99
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Solution
The fourth proportional to 290,690.29, 401,149.11 and 169,849.99 is: 234,390.95
Step by Step Solution
- Step 1: Write the proportion equation
290,690.29 : 401,149.11 = 169,849.99 : x - Step 2: Convert to fraction form
290,690.29/401,149.11 = 169,849.99/x - Step 3: Cross multiply
290,690.29x = 401,149.11 × 169,849.99 - Step 4: Simplify right side
290,690.29x = 68,135,172,322.01 - Step 5: Solve for x
x = 68,135,172,322.01/290,690.29 - Step 6: Final answer
x = 234,390.95
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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.