Finding the Fourth Proportional to 202,831.80, 279,928.26 and 112,194.60
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Solution
The fourth proportional to 202,831.80, 279,928.26 and 112,194.60 is: 154,839.82
Step by Step Solution
- Step 1: Write the proportion equation
202,831.80 : 279,928.26 = 112,194.60 : x - Step 2: Convert to fraction form
202,831.80/279,928.26 = 112,194.60/x - Step 3: Cross multiply
202,831.80x = 279,928.26 × 112,194.60 - Step 4: Simplify right side
202,831.80x = 31,406,439,159.40 - Step 5: Solve for x
x = 31,406,439,159.40/202,831.80 - Step 6: Final answer
x = 154,839.82
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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.