Finding the Fourth Proportional to 262,622.41, 394,056.64 and 129,430.02
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Solution
The fourth proportional to 262,622.41, 394,056.64 and 129,430.02 is: 194,205.66
Step by Step Solution
- Step 1: Write the proportion equation
262,622.41 : 394,056.64 = 129,430.02 : x - Step 2: Convert to fraction form
262,622.41/394,056.64 = 129,430.02/x - Step 3: Cross multiply
262,622.41x = 394,056.64 × 129,430.02 - Step 4: Simplify right side
262,622.41x = 51,002,758,796.33 - Step 5: Solve for x
x = 51,002,758,796.33/262,622.41 - Step 6: Final answer
x = 194,205.66
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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.