Finding the Fourth Proportional to 288,289.55, 397,864.18 and 160,989.75
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Solution
The fourth proportional to 288,289.55, 397,864.18 and 160,989.75 is: 222,179.59
Step by Step Solution
- Step 1: Write the proportion equation
288,289.55 : 397,864.18 = 160,989.75 : x - Step 2: Convert to fraction form
288,289.55/397,864.18 = 160,989.75/x - Step 3: Cross multiply
288,289.55x = 397,864.18 × 160,989.75 - Step 4: Simplify right side
288,289.55x = 64,052,052,977.69 - Step 5: Solve for x
x = 64,052,052,977.69/288,289.55 - Step 6: Final answer
x = 222,179.59
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1.5x scale
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.