Finding the Fourth Proportional to 264,739.40, 365,343.20 and 143,880.68
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Solution
The fourth proportional to 264,739.40, 365,343.20 and 143,880.68 is: 198,556.88
Step by Step Solution
- Step 1: Write the proportion equation
264,739.40 : 365,343.20 = 143,880.68 : x - Step 2: Convert to fraction form
264,739.40/365,343.20 = 143,880.68/x - Step 3: Cross multiply
264,739.40x = 365,343.20 × 143,880.68 - Step 4: Simplify right side
264,739.40x = 52,565,828,049.38 - Step 5: Solve for x
x = 52,565,828,049.38/264,739.40 - Step 6: Final answer
x = 198,556.88
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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.