Finding the Fourth Proportional to 228,476.92, 315,286.74 and 125,108.44
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Solution
The fourth proportional to 228,476.92, 315,286.74 and 125,108.44 is: 172,643.40
Step by Step Solution
- Step 1: Write the proportion equation
228,476.92 : 315,286.74 = 125,108.44 : x - Step 2: Convert to fraction form
228,476.92/315,286.74 = 125,108.44/x - Step 3: Cross multiply
228,476.92x = 315,286.74 × 125,108.44 - Step 4: Simplify right side
228,476.92x = 39,445,032,194.09 - Step 5: Solve for x
x = 39,445,032,194.09/228,476.92 - Step 6: Final answer
x = 172,643.40
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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.