Finding the Fourth Proportional to 396,634.36, 595,187.93 and 143,934.57
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Solution
The fourth proportional to 396,634.36, 595,187.93 and 143,934.57 is: 215,987.63
Step by Step Solution
- Step 1: Write the proportion equation
396,634.36 : 595,187.93 = 143,934.57 : x - Step 2: Convert to fraction form
396,634.36/595,187.93 = 143,934.57/x - Step 3: Cross multiply
396,634.36x = 595,187.93 × 143,934.57 - Step 4: Simplify right side
396,634.36x = 85,668,115,078.13 - Step 5: Solve for x
x = 85,668,115,078.13/396,634.36 - Step 6: Final answer
x = 215,987.63
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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.