Finding the Fourth Proportional to 216,725.13, 299,112.41 and 124,826.75
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Solution
The fourth proportional to 216,725.13, 299,112.41 and 124,826.75 is: 172,279.19
Step by Step Solution
- Step 1: Write the proportion equation
216,725.13 : 299,112.41 = 124,826.75 : x - Step 2: Convert to fraction form
216,725.13/299,112.41 = 124,826.75/x - Step 3: Cross multiply
216,725.13x = 299,112.41 × 124,826.75 - Step 4: Simplify right side
216,725.13x = 37,337,229,963.14 - Step 5: Solve for x
x = 37,337,229,963.14/216,725.13 - Step 6: Final answer
x = 172,279.19
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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.