Finding the Fourth Proportional to 394,319.55, 544,161.26 and 213,031.41
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Solution
The fourth proportional to 394,319.55, 544,161.26 and 213,031.41 is: 293,983.50
Step by Step Solution
- Step 1: Write the proportion equation
394,319.55 : 544,161.26 = 213,031.41 : x - Step 2: Convert to fraction form
394,319.55/544,161.26 = 213,031.41/x - Step 3: Cross multiply
394,319.55x = 544,161.26 × 213,031.41 - Step 4: Simplify right side
394,319.55x = 115,923,440,485.18 - Step 5: Solve for x
x = 115,923,440,485.18/394,319.55 - Step 6: Final answer
x = 293,983.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.