Finding the Fourth Proportional to 321,266.97, 481,961.30 and 129,156.26
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Solution
The fourth proportional to 321,266.97, 481,961.30 and 129,156.26 is: 193,758.84
Step by Step Solution
- Step 1: Write the proportion equation
321,266.97 : 481,961.30 = 129,156.26 : x - Step 2: Convert to fraction form
321,266.97/481,961.30 = 129,156.26/x - Step 3: Cross multiply
321,266.97x = 481,961.30 × 129,156.26 - Step 4: Simplify right side
321,266.97x = 62,248,315,917.15 - Step 5: Solve for x
x = 62,248,315,917.15/321,266.97 - Step 6: Final answer
x = 193,758.84
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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.