Finding the Fourth Proportional to 339,675.40, 509,517.90 and 129,324.84
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Solution
The fourth proportional to 339,675.40, 509,517.90 and 129,324.84 is: 193,989.09
Step by Step Solution
- Step 1: Write the proportion equation
339,675.40 : 509,517.90 = 129,324.84 : x - Step 2: Convert to fraction form
339,675.40/509,517.90 = 129,324.84/x - Step 3: Cross multiply
339,675.40x = 509,517.90 × 129,324.84 - Step 4: Simplify right side
339,675.40x = 65,893,320,894.64 - Step 5: Solve for x
x = 65,893,320,894.64/339,675.40 - Step 6: Final answer
x = 193,989.09
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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.