Finding the Fourth Proportional to 211,080.19, 291,279.79 and 115,568.41
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Solution
The fourth proportional to 211,080.19, 291,279.79 and 115,568.41 is: 159,478.45
Step by Step Solution
- Step 1: Write the proportion equation
211,080.19 : 291,279.79 = 115,568.41 : x - Step 2: Convert to fraction form
211,080.19/291,279.79 = 115,568.41/x - Step 3: Cross multiply
211,080.19x = 291,279.79 × 115,568.41 - Step 4: Simplify right side
211,080.19x = 33,662,742,195.43 - Step 5: Solve for x
x = 33,662,742,195.43/211,080.19 - Step 6: Final answer
x = 159,478.45
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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.