Finding the Fourth Proportional to 288,831.36, 398,687.64 and 198,486.48
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Solution
The fourth proportional to 288,831.36, 398,687.64 and 198,486.48 is: 273,980.31
Step by Step Solution
- Step 1: Write the proportion equation
288,831.36 : 398,687.64 = 198,486.48 : x - Step 2: Convert to fraction form
288,831.36/398,687.64 = 198,486.48/x - Step 3: Cross multiply
288,831.36x = 398,687.64 × 198,486.48 - Step 4: Simplify right side
288,831.36x = 79,134,106,283.11 - Step 5: Solve for x
x = 79,134,106,283.11/288,831.36 - Step 6: Final answer
x = 273,980.31
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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.