Finding the Fourth Proportional to 226,579.10, 312,703.04 and 129,790.68
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Solution
The fourth proportional to 226,579.10, 312,703.04 and 129,790.68 is: 179,124.82
Step by Step Solution
- Step 1: Write the proportion equation
226,579.10 : 312,703.04 = 129,790.68 : x - Step 2: Convert to fraction form
226,579.10/312,703.04 = 129,790.68/x - Step 3: Cross multiply
226,579.10x = 312,703.04 × 129,790.68 - Step 4: Simplify right side
226,579.10x = 40,585,940,199.67 - Step 5: Solve for x
x = 40,585,940,199.67/226,579.10 - Step 6: Final answer
x = 179,124.82
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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.