Finding the Fourth Proportional to 339,451.62, 509,242.98 and 129,073.14
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Solution
The fourth proportional to 339,451.62, 509,242.98 and 129,073.14 is: 193,634.63
Step by Step Solution
- Step 1: Write the proportion equation
339,451.62 : 509,242.98 = 129,073.14 : x - Step 2: Convert to fraction form
339,451.62/509,242.98 = 129,073.14/x - Step 3: Cross multiply
339,451.62x = 509,242.98 × 129,073.14 - Step 4: Simplify right side
339,451.62x = 65,729,590,451.56 - Step 5: Solve for x
x = 65,729,590,451.56/339,451.62 - Step 6: Final answer
x = 193,634.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.