Finding the Fourth Proportional to 279,785.05, 419,636.58 and 137,592.12
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Solution
The fourth proportional to 279,785.05, 419,636.58 and 137,592.12 is: 206,368.02
Step by Step Solution
- Step 1: Write the proportion equation
279,785.05 : 419,636.58 = 137,592.12 : x - Step 2: Convert to fraction form
279,785.05/419,636.58 = 137,592.12/x - Step 3: Cross multiply
279,785.05x = 419,636.58 × 137,592.12 - Step 4: Simplify right side
279,785.05x = 57,738,686,142.92 - Step 5: Solve for x
x = 57,738,686,142.92/279,785.05 - Step 6: Final answer
x = 206,368.02
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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.