Finding the Fourth Proportional to 288,201.15, 397,701.09 and 160,884.81
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Solution
The fourth proportional to 288,201.15, 397,701.09 and 160,884.81 is: 222,011.83
Step by Step Solution
- Step 1: Write the proportion equation
288,201.15 : 397,701.09 = 160,884.81 : x - Step 2: Convert to fraction form
288,201.15/397,701.09 = 160,884.81/x - Step 3: Cross multiply
288,201.15x = 397,701.09 × 160,884.81 - Step 4: Simplify right side
288,201.15x = 63,984,064,301.44 - Step 5: Solve for x
x = 63,984,064,301.44/288,201.15 - Step 6: Final answer
x = 222,011.83
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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.