Finding the Fourth Proportional to 354,831.12, 489,347.28 and 227,481.84
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Solution
The fourth proportional to 354,831.12, 489,347.28 and 227,481.84 is: 313,720.00
Step by Step Solution
- Step 1: Write the proportion equation
354,831.12 : 489,347.28 = 227,481.84 : x - Step 2: Convert to fraction form
354,831.12/489,347.28 = 227,481.84/x - Step 3: Cross multiply
354,831.12x = 489,347.28 × 227,481.84 - Step 4: Simplify right side
354,831.12x = 111,317,619,653.40 - Step 5: Solve for x
x = 111,317,619,653.40/354,831.12 - Step 6: Final answer
x = 313,720.00
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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.