Finding the Fourth Proportional to 328,400.36, 492,785.08 and 178,651.13
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Solution
The fourth proportional to 328,400.36, 492,785.08 and 178,651.13 is: 268,077.09
Step by Step Solution
- Step 1: Write the proportion equation
328,400.36 : 492,785.08 = 178,651.13 : x - Step 2: Convert to fraction form
328,400.36/492,785.08 = 178,651.13/x - Step 3: Cross multiply
328,400.36x = 492,785.08 × 178,651.13 - Step 4: Simplify right side
328,400.36x = 88,036,612,174.48 - Step 5: Solve for x
x = 88,036,612,174.48/328,400.36 - Step 6: Final answer
x = 268,077.09
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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.