Finding the Fourth Proportional to 208,859.10, 288,201.54 and 116,965.54
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Solution
The fourth proportional to 208,859.10, 288,201.54 and 116,965.54 is: 161,398.99
Step by Step Solution
- Step 1: Write the proportion equation
208,859.10 : 288,201.54 = 116,965.54 : x - Step 2: Convert to fraction form
208,859.10/288,201.54 = 116,965.54/x - Step 3: Cross multiply
208,859.10x = 288,201.54 × 116,965.54 - Step 4: Simplify right side
208,859.10x = 33,709,648,754.93 - Step 5: Solve for x
x = 33,709,648,754.93/208,859.10 - Step 6: Final answer
x = 161,398.99
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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.