Finding the Fourth Proportional to 290,458.29, 435,857.97 and 121,965.66
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Solution
The fourth proportional to 290,458.29, 435,857.97 and 121,965.66 is: 183,020.10
Step by Step Solution
- Step 1: Write the proportion equation
290,458.29 : 435,857.97 = 121,965.66 : x - Step 2: Convert to fraction form
290,458.29/435,857.97 = 121,965.66/x - Step 3: Cross multiply
290,458.29x = 435,857.97 × 121,965.66 - Step 4: Simplify right side
290,458.29x = 53,159,704,977.31 - Step 5: Solve for x
x = 53,159,704,977.31/290,458.29 - Step 6: Final answer
x = 183,020.10
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.