Finding the Fourth Proportional to 216,977.97, 299,457.99 and 126,335.46
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Solution
The fourth proportional to 216,977.97, 299,457.99 and 126,335.46 is: 174,359.47
Step by Step Solution
- Step 1: Write the proportion equation
216,977.97 : 299,457.99 = 126,335.46 : x - Step 2: Convert to fraction form
216,977.97/299,457.99 = 126,335.46/x - Step 3: Cross multiply
216,977.97x = 299,457.99 × 126,335.46 - Step 4: Simplify right side
216,977.97x = 37,832,162,917.33 - Step 5: Solve for x
x = 37,832,162,917.33/216,977.97 - Step 6: Final answer
x = 174,359.47
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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.