Finding the Fourth Proportional to 208,871.95, 288,243.63 and 113,378.62
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Solution
The fourth proportional to 208,871.95, 288,243.63 and 113,378.62 is: 156,462.68
Step by Step Solution
- Step 1: Write the proportion equation
208,871.95 : 288,243.63 = 113,378.62 : x - Step 2: Convert to fraction form
208,871.95/288,243.63 = 113,378.62/x - Step 3: Cross multiply
208,871.95x = 288,243.63 × 113,378.62 - Step 4: Simplify right side
208,871.95x = 32,680,664,993.19 - Step 5: Solve for x
x = 32,680,664,993.19/208,871.95 - Step 6: Final answer
x = 156,462.68
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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.