Finding the Fourth Proportional to 186,013.22, 278,932.26 and 129,916.68
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Solution
The fourth proportional to 186,013.22, 278,932.26 and 129,916.68 is: 194,813.86
Step by Step Solution
- Step 1: Write the proportion equation
186,013.22 : 278,932.26 = 129,916.68 : x - Step 2: Convert to fraction form
186,013.22/278,932.26 = 129,916.68/x - Step 3: Cross multiply
186,013.22x = 278,932.26 × 129,916.68 - Step 4: Simplify right side
186,013.22x = 36,237,953,164.10 - Step 5: Solve for x
x = 36,237,953,164.10/186,013.22 - Step 6: Final answer
x = 194,813.86
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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.