Finding the Fourth Proportional to 278,647.39, 384,651.14 and 188,125.99
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Solution
The fourth proportional to 278,647.39, 384,651.14 and 188,125.99 is: 259,693.36
Step by Step Solution
- Step 1: Write the proportion equation
278,647.39 : 384,651.14 = 188,125.99 : x - Step 2: Convert to fraction form
278,647.39/384,651.14 = 188,125.99/x - Step 3: Cross multiply
278,647.39x = 384,651.14 × 188,125.99 - Step 4: Simplify right side
278,647.39x = 72,362,875,576.50 - Step 5: Solve for x
x = 72,362,875,576.50/278,647.39 - Step 6: Final answer
x = 259,693.36
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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.