Finding the Fourth Proportional to 224,687.81, 309,972.87 and 129,174.23
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Solution
The fourth proportional to 224,687.81, 309,972.87 and 129,174.23 is: 178,205.07
Step by Step Solution
- Step 1: Write the proportion equation
224,687.81 : 309,972.87 = 129,174.23 : x - Step 2: Convert to fraction form
224,687.81/309,972.87 = 129,174.23/x - Step 3: Cross multiply
224,687.81x = 309,972.87 × 129,174.23 - Step 4: Simplify right side
224,687.81x = 40,040,505,253.28 - Step 5: Solve for x
x = 40,040,505,253.28/224,687.81 - Step 6: Final answer
x = 178,205.07
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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.