Finding the Fourth Proportional to 396,102.15, 594,194.94 and 115,620.21
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Solution
The fourth proportional to 396,102.15, 594,194.94 and 115,620.21 is: 173,442.49
Step by Step Solution
- Step 1: Write the proportion equation
396,102.15 : 594,194.94 = 115,620.21 : x - Step 2: Convert to fraction form
396,102.15/594,194.94 = 115,620.21/x - Step 3: Cross multiply
396,102.15x = 594,194.94 × 115,620.21 - Step 4: Simplify right side
396,102.15x = 68,700,943,743.74 - Step 5: Solve for x
x = 68,700,943,743.74/396,102.15 - Step 6: Final answer
x = 173,442.49
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1.5x scale
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.