Finding the Fourth Proportional to 268,921.92, 371,108.64 and 149,689.92
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Solution
The fourth proportional to 268,921.92, 371,108.64 and 149,689.92 is: 206,570.08
Step by Step Solution
- Step 1: Write the proportion equation
268,921.92 : 371,108.64 = 149,689.92 : x - Step 2: Convert to fraction form
268,921.92/371,108.64 = 149,689.92/x - Step 3: Cross multiply
268,921.92x = 371,108.64 × 149,689.92 - Step 4: Simplify right side
268,921.92x = 55,551,222,632.91 - Step 5: Solve for x
x = 55,551,222,632.91/268,921.92 - Step 6: Final answer
x = 206,570.08
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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.