Finding the Fourth Proportional to 206,390.66, 284,831.54 and 115,751.98
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Solution
The fourth proportional to 206,390.66, 284,831.54 and 115,751.98 is: 159,744.70
Step by Step Solution
- Step 1: Write the proportion equation
206,390.66 : 284,831.54 = 115,751.98 : x - Step 2: Convert to fraction form
206,390.66/284,831.54 = 115,751.98/x - Step 3: Cross multiply
206,390.66x = 284,831.54 × 115,751.98 - Step 4: Simplify right side
206,390.66x = 32,969,814,967.10 - Step 5: Solve for x
x = 32,969,814,967.10/206,390.66 - Step 6: Final answer
x = 159,744.70
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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.