Finding the Fourth Proportional to 339,548.68, 509,243.86 and 126,416.97
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Solution
The fourth proportional to 339,548.68, 509,243.86 and 126,416.97 is: 189,595.99
Step by Step Solution
- Step 1: Write the proportion equation
339,548.68 : 509,243.86 = 126,416.97 : x - Step 2: Convert to fraction form
339,548.68/509,243.86 = 126,416.97/x - Step 3: Cross multiply
339,548.68x = 509,243.86 × 126,416.97 - Step 4: Simplify right side
339,548.68x = 64,377,065,930.33 - Step 5: Solve for x
x = 64,377,065,930.33/339,548.68 - Step 6: Final answer
x = 189,595.99
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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.