Finding the Fourth Proportional to 315,003.99, 472,358.20 and 115,184.64
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Solution
The fourth proportional to 315,003.99, 472,358.20 and 115,184.64 is: 172,722.92
Step by Step Solution
- Step 1: Write the proportion equation
315,003.99 : 472,358.20 = 115,184.64 : x - Step 2: Convert to fraction form
315,003.99/472,358.20 = 115,184.64/x - Step 3: Cross multiply
315,003.99x = 472,358.20 × 115,184.64 - Step 4: Simplify right side
315,003.99x = 54,408,409,218.05 - Step 5: Solve for x
x = 54,408,409,218.05/315,003.99 - Step 6: Final answer
x = 172,722.92
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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.