Finding the Fourth Proportional to 186,394.68, 257,235.42 and 140,371.92
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Solution
The fourth proportional to 186,394.68, 257,235.42 and 140,371.92 is: 193,721.35
Step by Step Solution
- Step 1: Write the proportion equation
186,394.68 : 257,235.42 = 140,371.92 : x - Step 2: Convert to fraction form
186,394.68/257,235.42 = 140,371.92/x - Step 3: Cross multiply
186,394.68x = 257,235.42 × 140,371.92 - Step 4: Simplify right side
186,394.68x = 36,108,629,797.41 - Step 5: Solve for x
x = 36,108,629,797.41/186,394.68 - Step 6: Final answer
x = 193,721.35
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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.