Finding the Fourth Proportional to 217,914.26, 300,719.88 and 122,418.92
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Solution
The fourth proportional to 217,914.26, 300,719.88 and 122,418.92 is: 168,937.10
Step by Step Solution
- Step 1: Write the proportion equation
217,914.26 : 300,719.88 = 122,418.92 : x - Step 2: Convert to fraction form
217,914.26/300,719.88 = 122,418.92/x - Step 3: Cross multiply
217,914.26x = 300,719.88 × 122,418.92 - Step 4: Simplify right side
217,914.26x = 36,813,802,932.13 - Step 5: Solve for x
x = 36,813,802,932.13/217,914.26 - Step 6: Final answer
x = 168,937.10
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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.