Finding the Fourth Proportional to 396,307.20, 594,532.80 and 129,993.60
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Solution
The fourth proportional to 396,307.20, 594,532.80 and 129,993.60 is: 195,014.02
Step by Step Solution
- Step 1: Write the proportion equation
396,307.20 : 594,532.80 = 129,993.60 : x - Step 2: Convert to fraction form
396,307.20/594,532.80 = 129,993.60/x - Step 3: Cross multiply
396,307.20x = 594,532.80 × 129,993.60 - Step 4: Simplify right side
396,307.20x = 77,285,458,990.08 - Step 5: Solve for x
x = 77,285,458,990.08/396,307.20 - Step 6: Final answer
x = 195,014.02
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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.