Finding the Fourth Proportional to 342,128.92, 472,118.84 and 189,158.26
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Solution
The fourth proportional to 342,128.92, 472,118.84 and 189,158.26 is: 261,027.86
Step by Step Solution
- Step 1: Write the proportion equation
342,128.92 : 472,118.84 = 189,158.26 : x - Step 2: Convert to fraction form
342,128.92/472,118.84 = 189,158.26/x - Step 3: Cross multiply
342,128.92x = 472,118.84 × 189,158.26 - Step 4: Simplify right side
342,128.92x = 89,305,178,287.62 - Step 5: Solve for x
x = 89,305,178,287.62/342,128.92 - Step 6: Final answer
x = 261,027.86
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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.