Finding the Fourth Proportional to 187,286.94, 280,930.68 and 76,478.94
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Solution
The fourth proportional to 187,286.94, 280,930.68 and 76,478.94 is: 114,718.52
Step by Step Solution
- Step 1: Write the proportion equation
187,286.94 : 280,930.68 = 76,478.94 : x - Step 2: Convert to fraction form
187,286.94/280,930.68 = 76,478.94/x - Step 3: Cross multiply
187,286.94x = 280,930.68 × 76,478.94 - Step 4: Simplify right side
187,286.94x = 21,485,279,726.36 - Step 5: Solve for x
x = 21,485,279,726.36/187,286.94 - Step 6: Final answer
x = 114,718.52
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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.