Finding the Fourth Proportional to 208,987.47, 288,490.97 and 141,096.42
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Solution
The fourth proportional to 208,987.47, 288,490.97 and 141,096.42 is: 194,772.65
Step by Step Solution
- Step 1: Write the proportion equation
208,987.47 : 288,490.97 = 141,096.42 : x - Step 2: Convert to fraction form
208,987.47/288,490.97 = 141,096.42/x - Step 3: Cross multiply
208,987.47x = 288,490.97 × 141,096.42 - Step 4: Simplify right side
208,987.47x = 40,705,043,422.07 - Step 5: Solve for x
x = 40,705,043,422.07/208,987.47 - Step 6: Final answer
x = 194,772.65
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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.