Finding the Fourth Proportional to 288,483.21, 398,105.82 and 159,418.08
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Solution
The fourth proportional to 288,483.21, 398,105.82 and 159,418.08 is: 219,996.39
Step by Step Solution
- Step 1: Write the proportion equation
288,483.21 : 398,105.82 = 159,418.08 : x - Step 2: Convert to fraction form
288,483.21/398,105.82 = 159,418.08/x - Step 3: Cross multiply
288,483.21x = 398,105.82 × 159,418.08 - Step 4: Simplify right side
288,483.21x = 63,465,265,461.23 - Step 5: Solve for x
x = 63,465,265,461.23/288,483.21 - Step 6: Final answer
x = 219,996.39
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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.