Finding the Fourth Proportional to 236,855.12, 326,855.24 and 129,425.68
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Solution
The fourth proportional to 236,855.12, 326,855.24 and 129,425.68 is: 178,604.80
Step by Step Solution
- Step 1: Write the proportion equation
236,855.12 : 326,855.24 = 129,425.68 : x - Step 2: Convert to fraction form
236,855.12/326,855.24 = 129,425.68/x - Step 3: Cross multiply
236,855.12x = 326,855.24 × 129,425.68 - Step 4: Simplify right side
236,855.12x = 42,303,461,698.56 - Step 5: Solve for x
x = 42,303,461,698.56/236,855.12 - Step 6: Final answer
x = 178,604.80
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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.