Finding the Fourth Proportional to 315,076.80, 472,615.20 and 115,403.70
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Solution
The fourth proportional to 315,076.80, 472,615.20 and 115,403.70 is: 173,105.55
Step by Step Solution
- Step 1: Write the proportion equation
315,076.80 : 472,615.20 = 115,403.70 : x - Step 2: Convert to fraction form
315,076.80/472,615.20 = 115,403.70/x - Step 3: Cross multiply
315,076.80x = 472,615.20 × 115,403.70 - Step 4: Simplify right side
315,076.80x = 54,541,542,756.24 - Step 5: Solve for x
x = 54,541,542,756.24/315,076.80 - Step 6: Final answer
x = 173,105.55
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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.