Finding the Fourth Proportional to 315,383.36, 472,793.69 and 115,657.07
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Solution
The fourth proportional to 315,383.36, 472,793.69 and 115,657.07 is: 173,382.42
Step by Step Solution
- Step 1: Write the proportion equation
315,383.36 : 472,793.69 = 115,657.07 : x - Step 2: Convert to fraction form
315,383.36/472,793.69 = 115,657.07/x - Step 3: Cross multiply
315,383.36x = 472,793.69 × 115,657.07 - Step 4: Simplify right side
315,383.36x = 54,681,930,825.06 - Step 5: Solve for x
x = 54,681,930,825.06/315,383.36 - Step 6: Final answer
x = 173,382.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.