Finding the Fourth Proportional to 201,966.56, 278,714.96 and 117,133.92
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Solution
The fourth proportional to 201,966.56, 278,714.96 and 117,133.92 is: 161,645.45
Step by Step Solution
- Step 1: Write the proportion equation
201,966.56 : 278,714.96 = 117,133.92 : x - Step 2: Convert to fraction form
201,966.56/278,714.96 = 117,133.92/x - Step 3: Cross multiply
201,966.56x = 278,714.96 × 117,133.92 - Step 4: Simplify right side
201,966.56x = 32,646,975,827.44 - Step 5: Solve for x
x = 32,646,975,827.44/201,966.56 - Step 6: Final answer
x = 161,645.45
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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.