Finding the Fourth Proportional to 288,138.72, 432,272.28 and 88,476.48
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Solution
The fourth proportional to 288,138.72, 432,272.28 and 88,476.48 is: 132,734.43
Step by Step Solution
- Step 1: Write the proportion equation
288,138.72 : 432,272.28 = 88,476.48 : x - Step 2: Convert to fraction form
288,138.72/432,272.28 = 88,476.48/x - Step 3: Cross multiply
288,138.72x = 432,272.28 × 88,476.48 - Step 4: Simplify right side
288,138.72x = 38,245,929,735.97 - Step 5: Solve for x
x = 38,245,929,735.97/288,138.72 - Step 6: Final answer
x = 132,734.43
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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.