Finding the Fourth Proportional to 197,831.99, 296,735.67 and 85,433.42
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Solution
The fourth proportional to 197,831.99, 296,735.67 and 85,433.42 is: 128,144.81
Step by Step Solution
- Step 1: Write the proportion equation
197,831.99 : 296,735.67 = 85,433.42 : x - Step 2: Convert to fraction form
197,831.99/296,735.67 = 85,433.42/x - Step 3: Cross multiply
197,831.99x = 296,735.67 × 85,433.42 - Step 4: Simplify right side
197,831.99x = 25,351,141,640.41 - Step 5: Solve for x
x = 25,351,141,640.41/197,831.99 - Step 6: Final answer
x = 128,144.81
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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.