Finding the Fourth Proportional to 394,977.13, 545,072.39 and 213,692.96
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Solution
The fourth proportional to 394,977.13, 545,072.39 and 213,692.96 is: 294,898.42
Step by Step Solution
- Step 1: Write the proportion equation
394,977.13 : 545,072.39 = 213,692.96 : x - Step 2: Convert to fraction form
394,977.13/545,072.39 = 213,692.96/x - Step 3: Cross multiply
394,977.13x = 545,072.39 × 213,692.96 - Step 4: Simplify right side
394,977.13x = 116,478,131,364.91 - Step 5: Solve for x
x = 116,478,131,364.91/394,977.13 - Step 6: Final answer
x = 294,898.42
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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.