Finding the Fourth Proportional to 353,311.11, 529,645.93 and 128,512.62
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Solution
The fourth proportional to 353,311.11, 529,645.93 and 128,512.62 is: 192,652.27
Step by Step Solution
- Step 1: Write the proportion equation
353,311.11 : 529,645.93 = 128,512.62 : x - Step 2: Convert to fraction form
353,311.11/529,645.93 = 128,512.62/x - Step 3: Cross multiply
353,311.11x = 529,645.93 × 128,512.62 - Step 4: Simplify right side
353,311.11x = 68,066,188,524.41 - Step 5: Solve for x
x = 68,066,188,524.41/353,311.11 - Step 6: Final answer
x = 192,652.27
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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.