Finding the Fourth Proportional to 246,876.60, 340,689.90 and 139,446.84
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Solution
The fourth proportional to 246,876.60, 340,689.90 and 139,446.84 is: 192,436.75
Step by Step Solution
- Step 1: Write the proportion equation
246,876.60 : 340,689.90 = 139,446.84 : x - Step 2: Convert to fraction form
246,876.60/340,689.90 = 139,446.84/x - Step 3: Cross multiply
246,876.60x = 340,689.90 × 139,446.84 - Step 4: Simplify right side
246,876.60x = 47,508,129,974.92 - Step 5: Solve for x
x = 47,508,129,974.92/246,876.60 - Step 6: Final answer
x = 192,436.75
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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.