Finding the Fourth Proportional to 164,443.20, 246,664.80 and 129,013.80
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Solution
The fourth proportional to 164,443.20, 246,664.80 and 129,013.80 is: 193,520.70
Step by Step Solution
- Step 1: Write the proportion equation
164,443.20 : 246,664.80 = 129,013.80 : x - Step 2: Convert to fraction form
164,443.20/246,664.80 = 129,013.80/x - Step 3: Cross multiply
164,443.20x = 246,664.80 × 129,013.80 - Step 4: Simplify right side
164,443.20x = 31,823,163,174.24 - Step 5: Solve for x
x = 31,823,163,174.24/164,443.20 - Step 6: Final answer
x = 193,520.70
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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.