Finding the Fourth Proportional to 215,736.48, 297,577.36 and 143,137.80
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Solution
The fourth proportional to 215,736.48, 297,577.36 and 143,137.80 is: 197,437.95
Step by Step Solution
- Step 1: Write the proportion equation
215,736.48 : 297,577.36 = 143,137.80 : x - Step 2: Convert to fraction form
215,736.48/297,577.36 = 143,137.80/x - Step 3: Cross multiply
215,736.48x = 297,577.36 × 143,137.80 - Step 4: Simplify right side
215,736.48x = 42,594,568,640.21 - Step 5: Solve for x
x = 42,594,568,640.21/215,736.48 - Step 6: Final answer
x = 197,437.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.