Finding the Fourth Proportional to 296,823.80, 445,235.70 and 261,831.80
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Solution
The fourth proportional to 296,823.80, 445,235.70 and 261,831.80 is: 392,747.70
Step by Step Solution
- Step 1: Write the proportion equation
296,823.80 : 445,235.70 = 261,831.80 : x - Step 2: Convert to fraction form
296,823.80/445,235.70 = 261,831.80/x - Step 3: Cross multiply
296,823.80x = 445,235.70 × 261,831.80 - Step 4: Simplify right side
296,823.80x = 116,576,864,755.26 - Step 5: Solve for x
x = 116,576,864,755.26/296,823.80 - Step 6: Final answer
x = 392,747.70
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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.