Finding the Fourth Proportional to 246,689.82, 340,440.77 and 139,278.96
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Solution
The fourth proportional to 246,689.82, 340,440.77 and 139,278.96 is: 192,209.95
Step by Step Solution
- Step 1: Write the proportion equation
246,689.82 : 340,440.77 = 139,278.96 : x - Step 2: Convert to fraction form
246,689.82/340,440.77 = 139,278.96/x - Step 3: Cross multiply
246,689.82x = 340,440.77 × 139,278.96 - Step 4: Simplify right side
246,689.82x = 47,416,236,735.40 - Step 5: Solve for x
x = 47,416,236,735.40/246,689.82 - Step 6: Final answer
x = 192,209.95
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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.