Finding the Fourth Proportional to 262,630.23, 394,068.37 and 129,437.88
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Solution
The fourth proportional to 262,630.23, 394,068.37 and 129,437.88 is: 194,217.45
Step by Step Solution
- Step 1: Write the proportion equation
262,630.23 : 394,068.37 = 129,437.88 : x - Step 2: Convert to fraction form
262,630.23/394,068.37 = 129,437.88/x - Step 3: Cross multiply
262,630.23x = 394,068.37 × 129,437.88 - Step 4: Simplify right side
262,630.23x = 51,007,374,064.26 - Step 5: Solve for x
x = 51,007,374,064.26/262,630.23 - Step 6: Final answer
x = 194,217.45
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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.