Finding the Fourth Proportional to 339,884.13, 509,839.17 and 126,705.09
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Solution
The fourth proportional to 339,884.13, 509,839.17 and 126,705.09 is: 190,062.47
Step by Step Solution
- Step 1: Write the proportion equation
339,884.13 : 509,839.17 = 126,705.09 : x - Step 2: Convert to fraction form
339,884.13/509,839.17 = 126,705.09/x - Step 3: Cross multiply
339,884.13x = 509,839.17 × 126,705.09 - Step 4: Simplify right side
339,884.13x = 64,599,217,920.38 - Step 5: Solve for x
x = 64,599,217,920.38/339,884.13 - Step 6: Final answer
x = 190,062.47
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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.