Finding the Fourth Proportional to 200,080.70, 276,135.18 and 115,214.30
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Solution
The fourth proportional to 200,080.70, 276,135.18 and 115,214.30 is: 159,009.45
Step by Step Solution
- Step 1: Write the proportion equation
200,080.70 : 276,135.18 = 115,214.30 : x - Step 2: Convert to fraction form
200,080.70/276,135.18 = 115,214.30/x - Step 3: Cross multiply
200,080.70x = 276,135.18 × 115,214.30 - Step 4: Simplify right side
200,080.70x = 31,814,721,469.07 - Step 5: Solve for x
x = 31,814,721,469.07/200,080.70 - Step 6: Final answer
x = 159,009.45
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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.