Finding the Fourth Proportional to 245,235.12, 367,654.08 and 76,668.72
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Solution
The fourth proportional to 245,235.12, 367,654.08 and 76,668.72 is: 114,940.99
Step by Step Solution
- Step 1: Write the proportion equation
245,235.12 : 367,654.08 = 76,668.72 : x - Step 2: Convert to fraction form
245,235.12/367,654.08 = 76,668.72/x - Step 3: Cross multiply
245,235.12x = 367,654.08 × 76,668.72 - Step 4: Simplify right side
245,235.12x = 28,187,567,716.38 - Step 5: Solve for x
x = 28,187,567,716.38/245,235.12 - Step 6: Final answer
x = 114,940.99
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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.