Finding the Fourth Proportional to 215,908.16, 297,856.94 and 125,211.62
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Solution
The fourth proportional to 215,908.16, 297,856.94 and 125,211.62 is: 172,736.18
Step by Step Solution
- Step 1: Write the proportion equation
215,908.16 : 297,856.94 = 125,211.62 : x - Step 2: Convert to fraction form
215,908.16/297,856.94 = 125,211.62/x - Step 3: Cross multiply
215,908.16x = 297,856.94 × 125,211.62 - Step 4: Simplify right side
215,908.16x = 37,295,150,104.23 - Step 5: Solve for x
x = 37,295,150,104.23/215,908.16 - Step 6: Final answer
x = 172,736.18
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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.