Finding the Fourth Proportional to 230,658.80, 318,301.92 and 135,229.05
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Solution
The fourth proportional to 230,658.80, 318,301.92 and 135,229.05 is: 186,611.86
Step by Step Solution
- Step 1: Write the proportion equation
230,658.80 : 318,301.92 = 135,229.05 : x - Step 2: Convert to fraction form
230,658.80/318,301.92 = 135,229.05/x - Step 3: Cross multiply
230,658.80x = 318,301.92 × 135,229.05 - Step 4: Simplify right side
230,658.80x = 43,043,666,254.78 - Step 5: Solve for x
x = 43,043,666,254.78/230,658.80 - Step 6: Final answer
x = 186,611.86
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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.