Finding the Fourth Proportional to 208,855.36, 288,220.69 and 113,362.08
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Solution
The fourth proportional to 208,855.36, 288,220.69 and 113,362.08 is: 156,439.82
Step by Step Solution
- Step 1: Write the proportion equation
208,855.36 : 288,220.69 = 113,362.08 : x - Step 2: Convert to fraction form
208,855.36/288,220.69 = 113,362.08/x - Step 3: Cross multiply
208,855.36x = 288,220.69 × 113,362.08 - Step 4: Simplify right side
208,855.36x = 32,673,295,192.93 - Step 5: Solve for x
x = 32,673,295,192.93/208,855.36 - Step 6: Final answer
x = 156,439.82
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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.