Finding the Fourth Proportional to 189,398.09, 261,414.09 and 108,872.33
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Solution
The fourth proportional to 189,398.09, 261,414.09 and 108,872.33 is: 150,269.52
Step by Step Solution
- Step 1: Write the proportion equation
189,398.09 : 261,414.09 = 108,872.33 : x - Step 2: Convert to fraction form
189,398.09/261,414.09 = 108,872.33/x - Step 3: Cross multiply
189,398.09x = 261,414.09 × 108,872.33 - Step 4: Simplify right side
189,398.09x = 28,460,759,766.06 - Step 5: Solve for x
x = 28,460,759,766.06/189,398.09 - Step 6: Final answer
x = 150,269.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.