Finding the Fourth Proportional to 192,539.78, 288,615.58 and 80,281.99
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Solution
The fourth proportional to 192,539.78, 288,615.58 and 80,281.99 is: 120,342.05
Step by Step Solution
- Step 1: Write the proportion equation
192,539.78 : 288,615.58 = 80,281.99 : x - Step 2: Convert to fraction form
192,539.78/288,615.58 = 80,281.99/x - Step 3: Cross multiply
192,539.78x = 288,615.58 × 80,281.99 - Step 4: Simplify right side
192,539.78x = 23,170,632,185.16 - Step 5: Solve for x
x = 23,170,632,185.16/192,539.78 - Step 6: Final answer
x = 120,342.05
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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.