Finding the Fourth Proportional to 216,387.57, 298,609.33 and 120,894.98
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Solution
The fourth proportional to 216,387.57, 298,609.33 and 120,894.98 is: 166,831.99
Step by Step Solution
- Step 1: Write the proportion equation
216,387.57 : 298,609.33 = 120,894.98 : x - Step 2: Convert to fraction form
216,387.57/298,609.33 = 120,894.98/x - Step 3: Cross multiply
216,387.57x = 298,609.33 × 120,894.98 - Step 4: Simplify right side
216,387.57x = 36,100,368,978.16 - Step 5: Solve for x
x = 36,100,368,978.16/216,387.57 - Step 6: Final answer
x = 166,831.99
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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.