Finding the Fourth Proportional to 228,411.05, 315,207.97 and 123,634.97
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Solution
The fourth proportional to 228,411.05, 315,207.97 and 123,634.97 is: 170,616.65
Step by Step Solution
- Step 1: Write the proportion equation
228,411.05 : 315,207.97 = 123,634.97 : x - Step 2: Convert to fraction form
228,411.05/315,207.97 = 123,634.97/x - Step 3: Cross multiply
228,411.05x = 315,207.97 × 123,634.97 - Step 4: Simplify right side
228,411.05x = 38,970,727,914.71 - Step 5: Solve for x
x = 38,970,727,914.71/228,411.05 - Step 6: Final answer
x = 170,616.65
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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.