Finding the Fourth Proportional to 397,718.92, 548,859.38 and 218,867.08
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Solution
The fourth proportional to 397,718.92, 548,859.38 and 218,867.08 is: 302,040.57
Step by Step Solution
- Step 1: Write the proportion equation
397,718.92 : 548,859.38 = 218,867.08 : x - Step 2: Convert to fraction form
397,718.92/548,859.38 = 218,867.08/x - Step 3: Cross multiply
397,718.92x = 548,859.38 × 218,867.08 - Step 4: Simplify right side
397,718.92x = 120,127,249,831.21 - Step 5: Solve for x
x = 120,127,249,831.21/397,718.92 - Step 6: Final answer
x = 302,040.57
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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.