Finding the Fourth Proportional to 230,660.80, 318,304.68 and 135,231.05
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Solution
The fourth proportional to 230,660.80, 318,304.68 and 135,231.05 is: 186,614.62
Step by Step Solution
- Step 1: Write the proportion equation
230,660.80 : 318,304.68 = 135,231.05 : x - Step 2: Convert to fraction form
230,660.80/318,304.68 = 135,231.05/x - Step 3: Cross multiply
230,660.80x = 318,304.68 × 135,231.05 - Step 4: Simplify right side
230,660.80x = 43,044,676,096.31 - Step 5: Solve for x
x = 43,044,676,096.31/230,660.80 - Step 6: Final answer
x = 186,614.62
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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.