Finding the Fourth Proportional to 664,403.96, 996,764.70 and 215,125.32
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Solution
The fourth proportional to 664,403.96, 996,764.70 and 215,125.32 is: 322,739.38
Step by Step Solution
- Step 1: Write the proportion equation
664,403.96 : 996,764.70 = 215,125.32 : x - Step 2: Convert to fraction form
664,403.96/996,764.70 = 215,125.32/x - Step 3: Cross multiply
664,403.96x = 996,764.70 × 215,125.32 - Step 4: Simplify right side
664,403.96x = 214,429,325,052.20 - Step 5: Solve for x
x = 214,429,325,052.20/664,403.96 - Step 6: Final answer
x = 322,739.38
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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.