Finding the Fourth Proportional to 388,354.12, 582,556.28 and 122,124.96
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Solution
The fourth proportional to 388,354.12, 582,556.28 and 122,124.96 is: 183,195.33
Step by Step Solution
- Step 1: Write the proportion equation
388,354.12 : 582,556.28 = 122,124.96 : x - Step 2: Convert to fraction form
388,354.12/582,556.28 = 122,124.96/x - Step 3: Cross multiply
388,354.12x = 582,556.28 × 122,124.96 - Step 4: Simplify right side
388,354.12x = 71,144,662,392.75 - Step 5: Solve for x
x = 71,144,662,392.75/388,354.12 - Step 6: Final answer
x = 183,195.33
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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.