Finding the Fourth Proportional to 450,615.15, 675,836.60 and 135,072.09
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Solution
The fourth proportional to 450,615.15, 675,836.60 and 135,072.09 is: 202,582.32
Step by Step Solution
- Step 1: Write the proportion equation
450,615.15 : 675,836.60 = 135,072.09 : x - Step 2: Convert to fraction form
450,615.15/675,836.60 = 135,072.09/x - Step 3: Cross multiply
450,615.15x = 675,836.60 × 135,072.09 - Step 4: Simplify right side
450,615.15x = 91,286,661,385.13 - Step 5: Solve for x
x = 91,286,661,385.13/450,615.15 - Step 6: Final answer
x = 202,582.32
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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.