Finding the Fourth Proportional to 329,826.26, 455,161.12 and 178,923.26
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Solution
The fourth proportional to 329,826.26, 455,161.12 and 178,923.26 is: 246,914.58
Step by Step Solution
- Step 1: Write the proportion equation
329,826.26 : 455,161.12 = 178,923.26 : x - Step 2: Convert to fraction form
329,826.26/455,161.12 = 178,923.26/x - Step 3: Cross multiply
329,826.26x = 455,161.12 × 178,923.26 - Step 4: Simplify right side
329,826.26x = 81,438,911,415.65 - Step 5: Solve for x
x = 81,438,911,415.65/329,826.26 - Step 6: Final answer
x = 246,914.58
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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.