Finding the Fourth Proportional to 202,189.53, 278,897.88 and 129,567.96
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Solution
The fourth proportional to 202,189.53, 278,897.88 and 129,567.96 is: 178,724.53
Step by Step Solution
- Step 1: Write the proportion equation
202,189.53 : 278,897.88 = 129,567.96 : x - Step 2: Convert to fraction form
202,189.53/278,897.88 = 129,567.96/x - Step 3: Cross multiply
202,189.53x = 278,897.88 × 129,567.96 - Step 4: Simplify right side
202,189.53x = 36,136,229,359.92 - Step 5: Solve for x
x = 36,136,229,359.92/202,189.53 - Step 6: Final answer
x = 178,724.53
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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.