Finding the Fourth Proportional to 438,914.40, 658,177.20 and 202,135.20
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Solution
The fourth proportional to 438,914.40, 658,177.20 and 202,135.20 is: 303,113.27
Step by Step Solution
- Step 1: Write the proportion equation
438,914.40 : 658,177.20 = 202,135.20 : x - Step 2: Convert to fraction form
438,914.40/658,177.20 = 202,135.20/x - Step 3: Cross multiply
438,914.40x = 658,177.20 × 202,135.20 - Step 4: Simplify right side
438,914.40x = 133,040,779,957.44 - Step 5: Solve for x
x = 133,040,779,957.44/438,914.40 - Step 6: Final answer
x = 303,113.27
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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.