Finding the Fourth Proportional to 399,170.30, 598,851.12 and 132,933.12
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Solution
The fourth proportional to 399,170.30, 598,851.12 and 132,933.12 is: 199,431.54
Step by Step Solution
- Step 1: Write the proportion equation
399,170.30 : 598,851.12 = 132,933.12 : x - Step 2: Convert to fraction form
399,170.30/598,851.12 = 132,933.12/x - Step 3: Cross multiply
399,170.30x = 598,851.12 × 132,933.12 - Step 4: Simplify right side
399,170.30x = 79,607,147,797.09 - Step 5: Solve for x
x = 79,607,147,797.09/399,170.30 - Step 6: Final answer
x = 199,431.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.