Finding the Fourth Proportional to 239,238.13, 358,912.79 and 81,467.95
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Solution
The fourth proportional to 239,238.13, 358,912.79 and 81,467.95 is: 122,220.86
Step by Step Solution
- Step 1: Write the proportion equation
239,238.13 : 358,912.79 = 81,467.95 : x - Step 2: Convert to fraction form
239,238.13/358,912.79 = 81,467.95/x - Step 3: Cross multiply
239,238.13x = 358,912.79 × 81,467.95 - Step 4: Simplify right side
239,238.13x = 29,239,889,230.08 - Step 5: Solve for x
x = 29,239,889,230.08/239,238.13 - Step 6: Final answer
x = 122,220.86
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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.