Finding the Fourth Proportional to 217,335.21, 299,930.37 and 126,676.56
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Solution
The fourth proportional to 217,335.21, 299,930.37 and 126,676.56 is: 174,818.19
Step by Step Solution
- Step 1: Write the proportion equation
217,335.21 : 299,930.37 = 126,676.56 : x - Step 2: Convert to fraction form
217,335.21/299,930.37 = 126,676.56/x - Step 3: Cross multiply
217,335.21x = 299,930.37 × 126,676.56 - Step 4: Simplify right side
217,335.21x = 37,994,147,511.13 - Step 5: Solve for x
x = 37,994,147,511.13/217,335.21 - Step 6: Final answer
x = 174,818.19
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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.