Finding the Fourth Proportional to 288,077.20, 432,115.80 and 235,589.20
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Solution
The fourth proportional to 288,077.20, 432,115.80 and 235,589.20 is: 353,383.80
Step by Step Solution
- Step 1: Write the proportion equation
288,077.20 : 432,115.80 = 235,589.20 : x - Step 2: Convert to fraction form
288,077.20/432,115.80 = 235,589.20/x - Step 3: Cross multiply
288,077.20x = 432,115.80 × 235,589.20 - Step 4: Simplify right side
288,077.20x = 101,801,815,629.36 - Step 5: Solve for x
x = 101,801,815,629.36/288,077.20 - Step 6: Final answer
x = 353,383.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.