Finding the Fourth Proportional to 264,689.36, 396,810.84 and 114,816.80
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Solution
The fourth proportional to 264,689.36, 396,810.84 and 114,816.80 is: 172,128.38
Step by Step Solution
- Step 1: Write the proportion equation
264,689.36 : 396,810.84 = 114,816.80 : x - Step 2: Convert to fraction form
264,689.36/396,810.84 = 114,816.80/x - Step 3: Cross multiply
264,689.36x = 396,810.84 × 114,816.80 - Step 4: Simplify right side
264,689.36x = 45,560,550,854.11 - Step 5: Solve for x
x = 45,560,550,854.11/264,689.36 - Step 6: Final answer
x = 172,128.38
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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.