Finding the Fourth Proportional to 399,867.75, 599,801.62 and 133,628.26
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Solution
The fourth proportional to 399,867.75, 599,801.62 and 133,628.26 is: 200,442.39
Step by Step Solution
- Step 1: Write the proportion equation
399,867.75 : 599,801.62 = 133,628.26 : x - Step 2: Convert to fraction form
399,867.75/599,801.62 = 133,628.26/x - Step 3: Cross multiply
399,867.75x = 599,801.62 × 133,628.26 - Step 4: Simplify right side
399,867.75x = 80,150,447,742.57 - Step 5: Solve for x
x = 80,150,447,742.57/399,867.75 - Step 6: Final answer
x = 200,442.39
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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.