Finding the Fourth Proportional to 396,911.20, 595,366.80 and 239,447.20
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Solution
The fourth proportional to 396,911.20, 595,366.80 and 239,447.20 is: 359,170.80
Step by Step Solution
- Step 1: Write the proportion equation
396,911.20 : 595,366.80 = 239,447.20 : x - Step 2: Convert to fraction form
396,911.20/595,366.80 = 239,447.20/x - Step 3: Cross multiply
396,911.20x = 595,366.80 × 239,447.20 - Step 4: Simplify right side
396,911.20x = 142,558,913,232.96 - Step 5: Solve for x
x = 142,558,913,232.96/396,911.20 - Step 6: Final answer
x = 359,170.80
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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.