Finding the Fourth Proportional to 235,078.56, 324,415.11 and 138,289.53
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Solution
The fourth proportional to 235,078.56, 324,415.11 and 138,289.53 is: 190,843.49
Step by Step Solution
- Step 1: Write the proportion equation
235,078.56 : 324,415.11 = 138,289.53 : x - Step 2: Convert to fraction form
235,078.56/324,415.11 = 138,289.53/x - Step 3: Cross multiply
235,078.56x = 324,415.11 × 138,289.53 - Step 4: Simplify right side
235,078.56x = 44,863,213,086.80 - Step 5: Solve for x
x = 44,863,213,086.80/235,078.56 - Step 6: Final answer
x = 190,843.49
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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.