Finding the Fourth Proportional to 270,542.25, 405,880.20 and 83,553.75
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Solution
The fourth proportional to 270,542.25, 405,880.20 and 83,553.75 is: 125,351.26
Step by Step Solution
- Step 1: Write the proportion equation
270,542.25 : 405,880.20 = 83,553.75 : x - Step 2: Convert to fraction form
270,542.25/405,880.20 = 83,553.75/x - Step 3: Cross multiply
270,542.25x = 405,880.20 × 83,553.75 - Step 4: Simplify right side
270,542.25x = 33,912,812,760.75 - Step 5: Solve for x
x = 33,912,812,760.75/270,542.25 - Step 6: Final answer
x = 125,351.26
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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.