Finding the Fourth Proportional to 351,782.88, 527,739.20 and 115,138.68
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Solution
The fourth proportional to 351,782.88, 527,739.20 and 115,138.68 is: 172,729.26
Step by Step Solution
- Step 1: Write the proportion equation
351,782.88 : 527,739.20 = 115,138.68 : x - Step 2: Convert to fraction form
351,782.88/527,739.20 = 115,138.68/x - Step 3: Cross multiply
351,782.88x = 527,739.20 × 115,138.68 - Step 4: Simplify right side
351,782.88x = 60,763,194,872.26 - Step 5: Solve for x
x = 60,763,194,872.26/351,782.88 - Step 6: Final answer
x = 172,729.26
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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.