Finding the Fourth Proportional to 279,794.08, 419,385.68 and 137,737.12
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Solution
The fourth proportional to 279,794.08, 419,385.68 and 137,737.12 is: 206,455.32
Step by Step Solution
- Step 1: Write the proportion equation
279,794.08 : 419,385.68 = 137,737.12 : x - Step 2: Convert to fraction form
279,794.08/419,385.68 = 137,737.12/x - Step 3: Cross multiply
279,794.08x = 419,385.68 × 137,737.12 - Step 4: Simplify right side
279,794.08x = 57,764,975,732.44 - Step 5: Solve for x
x = 57,764,975,732.44/279,794.08 - Step 6: Final answer
x = 206,455.32
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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.