Finding the Fourth Proportional to 398,107.85, 597,158.12 and 161,394.26
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Solution
The fourth proportional to 398,107.85, 597,158.12 and 161,394.26 is: 242,089.90
Step by Step Solution
- Step 1: Write the proportion equation
398,107.85 : 597,158.12 = 161,394.26 : x - Step 2: Convert to fraction form
398,107.85/597,158.12 = 161,394.26/x - Step 3: Cross multiply
398,107.85x = 597,158.12 × 161,394.26 - Step 4: Simplify right side
398,107.85x = 96,377,890,298.09 - Step 5: Solve for x
x = 96,377,890,298.09/398,107.85 - Step 6: Final answer
x = 242,089.90
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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.