Finding the Fourth Proportional to 288,622.36, 398,316.54 and 161,308.12
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Solution
The fourth proportional to 288,622.36, 398,316.54 and 161,308.12 is: 222,615.09
Step by Step Solution
- Step 1: Write the proportion equation
288,622.36 : 398,316.54 = 161,308.12 : x - Step 2: Convert to fraction form
288,622.36/398,316.54 = 161,308.12/x - Step 3: Cross multiply
288,622.36x = 398,316.54 × 161,308.12 - Step 4: Simplify right side
288,622.36x = 64,251,692,232.30 - Step 5: Solve for x
x = 64,251,692,232.30/288,622.36 - Step 6: Final answer
x = 222,615.09
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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.