Finding the Fourth Proportional to 217,986.45, 326,845.88 and 84,711.08
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Solution
The fourth proportional to 217,986.45, 326,845.88 and 84,711.08 is: 127,014.62
Step by Step Solution
- Step 1: Write the proportion equation
217,986.45 : 326,845.88 = 84,711.08 : x - Step 2: Convert to fraction form
217,986.45/326,845.88 = 84,711.08/x - Step 3: Cross multiply
217,986.45x = 326,845.88 × 84,711.08 - Step 4: Simplify right side
217,986.45x = 27,687,465,430.57 - Step 5: Solve for x
x = 27,687,465,430.57/217,986.45 - Step 6: Final answer
x = 127,014.62
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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.