Finding the Fourth Proportional to 187,268.46, 280,930.70 and 68,930.79
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Solution
The fourth proportional to 187,268.46, 280,930.70 and 68,930.79 is: 103,406.50
Step by Step Solution
- Step 1: Write the proportion equation
187,268.46 : 280,930.70 = 68,930.79 : x - Step 2: Convert to fraction form
187,268.46/280,930.70 = 68,930.79/x - Step 3: Cross multiply
187,268.46x = 280,930.70 × 68,930.79 - Step 4: Simplify right side
187,268.46x = 19,364,775,086.25 - Step 5: Solve for x
x = 19,364,775,086.25/187,268.46 - Step 6: Final answer
x = 103,406.50
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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.