Finding the Fourth Proportional to 396,169.20, 594,325.80 and 129,855.60
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Solution
The fourth proportional to 396,169.20, 594,325.80 and 129,855.60 is: 194,807.00
Step by Step Solution
- Step 1: Write the proportion equation
396,169.20 : 594,325.80 = 129,855.60 : x - Step 2: Convert to fraction form
396,169.20/594,325.80 = 129,855.60/x - Step 3: Cross multiply
396,169.20x = 594,325.80 × 129,855.60 - Step 4: Simplify right side
396,169.20x = 77,176,533,354.48 - Step 5: Solve for x
x = 77,176,533,354.48/396,169.20 - Step 6: Final answer
x = 194,807.00
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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.